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Internal Medicine Providers in Guaynabo, PR

Browse 29 Internal Medicine providers listed in NPPES with a practice address in Guaynabo, Puerto Rico.

29 Healthcare Providers

How Guaynabo compares with the U.S.

Guaynabo has 32 clinicians in Internal Medicine per 100,000 residents, about 73% of the U.S. rate of 44.

That is 29 active clinicians in Internal Medicine with a practice address in Guaynabo, for a population of 89,378.

That is close to the Puerto Rico rate of 35.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

92% of clinicians in Internal Medicine in Guaynabo listed in the CMS Medicare file (12 of 13) accept Medicare assignment. That is similar to the Puerto Rico share of 93%.

Only 13 of 29 active clinicians in Internal Medicine in Guaynabo appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

8% of clinicians in Internal Medicine in Guaynabo listed in the CMS Medicare file (1 of 13) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Puerto Rico share of 7%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Guaynabo, PR

Source: CMS PECOS
PECOS Enrolled Specialists 16 In Guaynabo, PR
Part B Lab & Imaging Eligible 17 Diagnostic Referrals
DME Ordering Eligible 19 Durable Medical Equipment
Home Health Agency Referrals 17 HHA Ordering Eligible
Showing 1โ€“20 of 29 providers
With recent CMS data first, then Aโ€“Z
Active NPI Status Accepts Medicare Assignment
123 Calle 21, Urb. Ponce De Leon, Guaynabo, PR 009694439
Phone: 7875181811
NPI Identifier 1932361409
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Dr. Rolando J. Blanco-Cuadra , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1 Ave Palma Real, Murano Apt 1111, Guaynabo, PR 009697201
Phone: 7876711371
NPI Identifier 1881626182
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Dr. Roldan Cabret , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 Ave San Patricio, Suite 1010, Guaynabo, PR 009682606
Phone: 7873310607
NPI Identifier 1336170521
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Dr. Jose Caldera Nieves , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
Urb Ponce De Leon Ave Esmerolda #58, Guaynabo, PR 00969
Phone: 7872876377
NPI Identifier 1083784805
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Dr. Joseph Stephen Campos , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
Plaza Guaynabo Shopping Mall, Caribbean Cinemas Bldg., Suite 201, Guaynabo, PR 00970
Phone: 7877314949
NPI Identifier 1851317119
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Dr. Litza H Camunas , MD

Internal Medicine

Active NPI Status
San Jose St. #50 Cond. San Francisco Javier, Apt. K-2, Guaynabo, PR 00969
Phone: 7873659249
NPI Identifier 1619070570
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Dr. Eilyn De Jesus Gonzalez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
Cond Los Arcos Suchville, Torre Sur 412, Guaynabo, PR 00966
Phone: 7879233749
NPI Identifier 1497763551
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Dr. Marta Diaz Nater , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2 Carr. 177 Atp. 207, Cond The Falls, Guaynabo, PR 00966
Phone: 7877660430
NPI Identifier 1922048206
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Dr. Federico J Gregory-Gonzalez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
Cond Madreselva, I7 Calle Ebano Apt. 602, Guaynabo, PR 009683100
Phone: 7876716376
NPI Identifier 1376675843
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Dr. Juan C. Lebron-Miro , MD

Internal Medicine

Active NPI Status
450 Ave Esmeralda, Edificio Guaynabo Memorial, Guaynabo, PR 009693457
Phone: 7875173353
NPI Identifier 1902034093
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Dr. Maria J Lopez , MD

Internal Medicine

Active NPI Status
Ave Lopategui, H-10, Parkville Blvd, Guaynabo, PR 009694595
Phone: 7877908098
NPI Identifier 1487678264
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Dr. Johanna L Martinez , MD

Internal Medicine

Active NPI Status
Edif. Caparra Gallery 107, Ortegon Ave. Suite 207, Guaynabo, PR 00969
Phone: 7877443883
NPI Identifier 1033105580
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Dr. Milciades Mercedes Maldonado , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
140 Ave Las Cumbres, Ste 208b, Guaynabo, PR 009695527
Phone: 7873608641
NPI Identifier 1366435000
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Dr. Rogelio F Montalvo , MD

Internal Medicine

Active NPI Status
30 Calle Juan C Borbon Apt 205, 30 Juan De Borbon, Guaynabo, PR 009695319
Phone: 7874061408
NPI Identifier 1891986600
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Dr. Alina Pradere Alonso , MD

Internal Medicine

Active NPI Status
58 Ave Esmeralda, Urb Ponce De Leon, Guaynabo, PR 009694429
Phone: 7872876377
NPI Identifier 1447241096
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Dr. Liliana Ramos-Perez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10 Avenida Las Cumbres, Professional Hospital Medical Plaza, Suite 306, Guaynabo, PR 00969
Phone: 7872235442
NPI Identifier 1144514555
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Active NPI Status
Po Box 4339, Guaynabo, PR 009704339
Phone: 7877790122
NPI Identifier 1700559531
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Dr. Magda Ivette Rodriguez-Colon , MD

Internal Medicine

Active NPI Status
37 Calle Jaime Rodriguez, Urb. Santa Paula, Guaynabo, PR 009695917
Phone: 7877904339
NPI Identifier 1033249792
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Dr. Luis A Sanchez , MD

Internal Medicine

Active NPI Status
229 Rd 2 Apt 11e, Guaynabo, PR 009660143
Phone: 7877812853
NPI Identifier 1366485054
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Dr. Stephanie Marie Seymour Acevedo , MD, MPH

Internal Medicine

Active NPI Status
107 Cereipo St, Urb Alturas De Santa Maria, Guaynabo, PR 00969
Phone: 7876488314
NPI Identifier 1588187868
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Frequently Asked Questions about Internal Medicine in Guaynabo

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Puerto Rico licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.