Puerto Rico's Top 2% Scientists 2026: Career-Long List

Puerto Rico has 56 scientists on the 2026 career-long Top 2% list, up 27.3% from 44 in 2025. That places Puerto Rico 71st in the world by number of listed scientists, up 2 places. Universidad de Puerto Rico has the most listed scientists (12), followed by Moffitt Cancer Center (4).

Single Year

+16 (+53.3%) vs 2025

Career Data

+12 (+27.3%) vs 2025

World rank by count

#71

up 2 places vs 2025

Institutes

+8 (+42.1%) vs 2025

Scientists in Puerto Rico on the list, by year

The career-long count has more than doubled since 2020.

Career-long list, change on the previous year

2021-4.8%

2022+45.0%

2023-6.9%

2024+29.6%

2025+25.7%

2026+27.3%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	12		21
2021	17	+41.7%	20	-4.8%
2022	19	+11.8%	29	+45.0%
2023	17	-10.5%	27	-6.9%
2024	24	+41.2%	35	+29.6%
2025	30	+25.0%	44	+25.7%
2026	46	+53.3%	56	+27.3%

Top 10 institutes in Puerto Rico

By number of listed scientists

Career-long list2026

Show the list

All 56 scientists

Career-long list2026

Showing the 2026 career-long list. Looking for single-year rankings? See the single-year list

Everyone on the list, free to browse.

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Rank in Puerto Rico	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	5,571	PJ Paul, Justin	Universidad de Puerto Rico	Marketing	Rank 14
2	11,207	LA Lugo, Ariel E.	USDA Forest Service International Institute of Tropical Forestry	Ecology	Rank 213
3	13,278	AW Adam, Waldemar	Universidad de Puerto Rico	Organic Chemistry	Rank 281
4	16,290	CZ Chen, Zhongfang	Universidad de Puerto Rico	Nanoscience & Nanotechnology	Rank 264
5	17,187	BB Bavister, Barry D.	University of Puerto Rico, Medical Sciences Campus	Obstetrics & Reproductive Medicine	Rank 115
6	23,559	KA Kaunitz, Andrew M.	University of Florida Health	Obstetrics & Reproductive Medicine	Rank 172
7	25,844	LK Lu, Karen H.	Moffitt Cancer Center	Oncology & Carcinogenesis	Rank 1,120
8	26,626	AC Anasetti, Claudio	Moffitt Cancer Center	Immunology	Rank 848
9	30,497	FW Frontera, Walter R.	Universidad de Puerto Rico	Rehabilitation	Rank 41
10	36,128	CF Cabanillas, Fernando	University of Puerto Rico School of Medicine	Oncology & Carcinogenesis	Rank 1,577
11	43,548	HG Haidukewych, George J.	Orlando Health Jewett Orthopedic Institute	Orthopedics	Rank 267
12	45,631	BL Blum, Lesser	Universidad de Puerto Rico, Recinto de Rio Piedras	Chemical Physics	Rank 899
13	46,461	CG Canino, Glorisa J.	University of Puerto Rico School of Medicine	Psychiatry	Rank 957
14	49,175	KR Katiyar, Rams Sharan	Universidad de Puerto Rico	Applied Physics	Rank 1,179
15	57,737	UR Udelsman, Robert D.	Baptist Hospital of Miami	Surgery	Rank 458
16	61,096	HL Harrison, Louis Benjamin	Moffitt Cancer Center	Oncology & Carcinogenesis	Rank 2,514
17	61,437	PA Pinna, Antonio Daniele	Cleveland Clinic Florida	Surgery	Rank 490
18	70,025	OP Okunieff, Paul G.	University of Florida College of Medicine	Oncology & Carcinogenesis	Rank 2,823
19	70,091	NU Navaneethan, Udayakumar	Orlando Health	Gastroenterology & Hepatology	Rank 1,028
20	74,644	FA Frankel, Arthur Edward	West Palm Beach VA Medical Center	Oncology & Carcinogenesis	Rank 2,971
21	76,802	PJ Parrotta, John A.	USDA Forest Service International Institute of Tropical Forestry	Forestry	Rank 71
22	76,992	BN Brokaw, Nicholas V.L.	Universidad de Puerto Rico, Recinto de Rio Piedras	Ecology	Rank 1,343
23	80,353	RA Rodríguez, Abimael D.	Universidad de Puerto Rico	Organic Chemistry	Rank 1,448
24	90,854	JS Javadov, Sabzali	University of Puerto Rico School of Medicine	Biochemistry & Molecular Biology	Rank 3,249
25	91,401	FH Ford, Henri R.	University of Miami	Pediatrics	Rank 472
26	95,083	MS Malik, Sohail K.	Recinto Universitario de Mayagüez	General Physics	Rank 597
27	95,908	IY Ishikawa, Yasuyuki	Universidad de Puerto Rico, Recinto de Rio Piedras	Chemical Physics	Rank 1,749
28	101,431	LW Lee, W. Anthony	Christine E. Lynn Heart & Vascular Institute	Cardiovascular System & Hematology	Rank 3,227
29	104,720	HC Hines, Colin O.	National Astronomy and Ionosphere Center Arecibo Observatory	Meteorology & Atmospheric Sciences	Rank 1,639
30	110,518	LM Lindau, Manfred	University of Miami Miller	Biochemistry & Molecular Biology	Rank 3,913
31	119,137	PJ Pidala, Joseph A.	Moffitt Cancer Center	Immunology	Rank 3,073
32	121,944	BG Bernal, Guillermo	Caribbean Alliance of National Psychological Associations	Family Studies	Rank 57
33	123,333	DM de Mello, Walmor Carlos	Universidad de Puerto Rico	Cardiovascular System & Hematology	Rank 3,801
34	124,415	RJ Rigau-Pérez, Joség G.	Universidad de Puerto Rico	General & Internal Medicine	Rank 1,545
35	130,486	SJ Soderquist, John A.	Universidad de Puerto Rico	Organic Chemistry	Rank 2,210
36	131,887	JM Johansson, Michael A.	Centers for Disease Control and Prevention San Juan	Tropical Medicine	Rank 284
37	137,798	MJ Muñoz-Jordán, Jorge Luis	Centers for Disease Control and Prevention San Juan	Microbiology	Rank 3,343
38	156,107	WD WuDunn, Darrell	University of Florida College of Medicine-Jacksonville	Ophthalmology & Optometry	Rank 1,140
39	167,370	CN Carballeira, Néstor M.	Universidad de Puerto Rico	Medicinal & Biomolecular Chemistry	Rank 640
40	167,741	AS Atallah, Sam B.	Division of Colon and Rectal Surgery	Surgery	Rank 1,461
41	171,973	HG Hillyer, George V.	University of Puerto Rico School of Medicine	Mycology & Parasitology	Rank 361
42	195,333	HE Helmer, Eileen H.	USDA Forest Service International Institute of Tropical Forestry	Geological & Geomatics Engineering	Rank 1,036
43	197,119	HH Hu, Houchun Harry	Mayo Clinic Florida	Nuclear Medicine & Medical Imaging	Rank 1,775
44	197,793	PD Ponce de León, J.	Universidad de Puerto Rico	Nuclear & Particle Physics	Rank 3,027
45	232,159	ER Epstein, Richard H.	University of Miami	Anesthesiology	Rank 964
46	242,050	BP Bayman, Paul	Universidad de Puerto Rico, Recinto de Rio Piedras	Plant Biology & Botany	Rank 3,643
47	261,230	LD Lyon, Debra E.	UF Health Shands Hospital	Nursing	Rank 881
48	276,470	GK Griebenow, Kai H.	Universidad de Puerto Rico	Pharmacology & Pharmacy	Rank 2,694
49	290,926	KD Keith, Douglas Scott	Ascension Sacred Heart Hospital	Surgery	Rank 2,671
50	302,053	CD Cope, Diane G.	Florida Cancer Specialists	Nursing	Rank 1,104
51	356,973	GM Garćia-Palmieri, Mario R.	University of Puerto Rico, Medical Sciences Campus	General & Internal Medicine	Rank 4,734
52	375,779	WM Weaver, M. T.	UF Health Shands Hospital	Nursing	Rank 1,466
53	391,643	LK Lu, Kejie	Recinto Universitario de Mayagüez	Networking & Telecommunications	Rank 4,120
54	512,794	GR García-Rinaldi, Raúl F.	Mayaguez Medical Center	General & Internal Medicine	Rank 6,926
55	537,230	OA Ortiz, Ana Patricia	University of Puerto Rico, Medical Sciences Campus	General & Internal Medicine	Rank 7,287
56	590,261	MZ Madewell, Zachary Joseph	Centers for Disease Control and Prevention San Juan	General & Internal Medicine	Rank 8,118
No scientists match this filter on the career-long list. Try the single-year list

Showing 1 to 56 of 56 Show

Countries with a similar count

Career-long list2026

Indonesia70 scientists

Lithuania65 scientists

Morocco63 scientists

Kenya55 scientists

Tunisia52 scientists

Philippines51 scientists

Explore other countries

Career-long list2026

Jamaica20 scientists

United States90,922 scientists

Canada10,063 scientists

Brazil1,304 scientists

Mexico461 scientists

Argentina279 scientists

All countries on the world map

Frequently asked questions

How many scientists from Puerto Rico are in the 2026 Stanford Top 2% list?

46 scientists affiliated with Puerto Rico are on the 2026 single-year list, and 56 are on the career-long list.

Which institute in Puerto Rico has the most Top 2% scientists?

On the 2026 career-long list, Universidad de Puerto Rico has the most listed scientists from Puerto Rico, with 12. It is followed by Moffitt Cancer Center with 4.

How has the number of Top 2% scientists in Puerto Rico changed since 2020?

On the career-long list, Puerto Rico went from 21 scientists in 2020 to 56 in 2026, a change of +166.7%.

What is the difference between the single-year and career-long lists?

The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.

What is the official source of this data?

The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.