NPPES file of Aug 9, 2026

Doctors and health care providers in Isabela, PR

397 individual NPPES records list a practice address in Isabela, 16th of 92 Puerto Rico cities. The largest group is general practice physician: 48, 12% of the city's records, against 10% across Puerto Rico. Page 4 of 8.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Isabela

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Isabela in Puerto Rico

  • Rank in Puerto Rico16th of 92 cities by records
  • Share of the state1% of Puerto Rico's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28% of all records

Compared with Puerto Rico as a whole, Isabela has 4.3× the state's share of speech-language assistant records and 0.75× its share of clinical social worker records.

Providers in Isabela, alphabetically

  1. Abigail Lopez Diaz, M.D.General Practice Physician1528251865
  2. Vivian Lopez Lorenzo, M.D.General Practice Physician1235229048
  3. Lorena Lopez Marrero, DCChiropractor1932176633
  4. Javier Lopez MendezPharmacist1306482468
  5. Victor Lopez Robles, MT(ASCP), NLNaturopath1619635091
  6. Jose Loyola, D.M.D.General Practice Dentistry1346385283
  7. Alejandro Loyola VelezInternal Medicine Physician1346704657
  8. Maritza LugoPharmacy Technician1972715647
  9. Mildred Luyando, TECHNICIANPharmacy Technician1164593091
  10. Ariana MachadoOccupational Therapy Assistant1770404204
  11. Maria MaldonadoSpeech-Language Assistant1730020827
  12. Ildaly Maldonado Aviles, M.D.General Practice Physician1669547717
  13. Erica Maldonado VelezPharmacy Technician1386808434
  14. Anjelica Malone, CPM, IBCLCLactation Consultant (Non-RN)1427146893
  15. Lourdes Mantilla, MSWClinical Social Worker1154684306
  16. Joaquin Marcial, DCChiropractor1467088658
  17. Isennia Marin, MDGeneral Practice Physician1023619756
  18. Gladymir Marquez, SLPSpeech-Language Pathologist1619529906
  19. Aida MartinezPharmacy Technician1447471693
  20. Brendaliz Martinez, TERAPISTA DEL HABLASpeech-Language Assistant1528993979
  21. Griselda Martinez, TECPharmacy Technician1689379935
  22. Viviannette MartinezCounseling Psychologist1942999115
  23. Felix Martinez Fortier, M.D.Specialist1366451502
  24. Auris Martinez Paredes, SLPSpeech-Language Pathologist1386501450
  25. Melissa Martinez Rivera, ODOptometrist1649994468
  26. Carlos Martinez RuizPharmacist1205773975
  27. Adliana Martinez SotoRegistered Nurse1144119991
  28. Evelyn Martir, RNRegistered Nurse1508982463
  29. Frances MartirSpeech-Language Pathologist1669363503
  30. Suley Matias HernandezSpeech-Language Assistant1699645192
  31. Deborah Medina, MASTER D.Psychologist1033252358
  32. Zoraida MedinaRegistered Nurse1801098041
  33. Ana MelendezSocial Worker1487025961
  34. Carmen Melon, LPNRegistered Nurse1053434142
  35. Juan Melon-Velez, MDGeneral Practice Physician1730278714
  36. Luis MendezCounseling Psychologist1578215919
  37. Wanda Mendez Gonzalez, MSCounseling Psychologist1619431863
  38. Karen Mendez Mercado, M.D.General Practice Physician1174852073
  39. Yanila Mendez-Pietri, M.D.General Practice Physician1821181140
  40. Francheska Mendoza Santiago, PHDClinical Psychologist1083270565
  41. Eugenio MercadoRegistered Nurse1891907192
  42. Irma MercadoSpeech-Language Assistant1588028674
  43. Lizmarie Mercado, MSWClinical Social Worker1790409993
  44. Melanie MercadoOccupational Therapy Assistant1407669922
  45. Nilsa MercadoRegistered Nurse1073738829
  46. Nydia Mercado, SPECH LANGUAGE ASISTSpeech-Language Assistant1558237354
  47. Raquel MercadoPharmacy Technician1336231703
  48. Jose Mercado Santiago, MDGeneral Practice Physician1306010699
  49. Evelyn MirandaPharmacy Technician1275835472
  50. Wilnelia MontalvoGeneral Practice Physician1417071853

The largest Puerto Rico cities

  1. San Juan8,960
  2. Ponce3,338
  3. Bayamon2,958
  4. Guaynabo2,143
  5. Caguas2,093

All of Puerto Rico →

How to read this directory

Isabela, Puerto Rico appears in the CMS National Plan and Provider Enumeration System with 397 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Isabela - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Isabela practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Isabela is weighted toward General Practice Physician (48 clinicians, followed by Pharmacy Technician with 33 and Pharmacist with 30). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Puerto Rico's population, Isabela reports roughly 12.4 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of Puerto Rico's most common specialties, Pediatrics Physician is the most prominent one with no provider currently listing a Isabela practice address, a coverage gap Isabela patients typically fill by traveling to a larger nearby hub.

For Isabela patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Isabela, PR?

There are 397 registered healthcare providers in Isabela, PR, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Isabela?

The most common specialties in Isabela are General Practice Physician, Pharmacy Technician, Pharmacist, Registered Nurse, Clinical Psychologist. General Practice Physician has the most providers with 48.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.