Karla A. Berrios Sierra, M.D.
Family Medicine Physician · San Juan, PR
Karla A. Berrios Sierra, M.D. is a family medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1558590059, issued on Jul 7, 2009. Check the license (Puerto Rico 18935, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karla A. Berrios Sierra
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 18935 PR
Self-reported in NPPES; status is on the state search - Practice location
- Hospital Universitario DE Adulto, San Juan, PR 00935
- Phone
- (787) 754-0101
- Enumerated
- Jul 7, 2009
- Record last updated
- Nov 11, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150114002035); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 604 in Puerto Rico → Look up another NPI →
Verify Karla A. Berrios Sierra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 18935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,637 Medicare Part D claims for 295 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Losartan Potassium589 claims
- Atorvastatin Calcium574 claims
- Amlodipine Besylate476 claims
- Simvastatin438 claims
- Gabapentin390 claims
- Hydrochlorothiazide369 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $193.22
4 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karla A. Berrios Sierra among 604 family medicine physician records in Puerto Rico
Karla A. Berrios Sierra, M.D. is one of 604 family medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 73% of them.
- NPI issued2009 · 73% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2008 · median 1995 among the 234 with a school on file
- Record last updated2014 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
98 family medicine physician records list a practice address in San Juan
They are 98 of the 8,960 NPPES records with a practice address in San Juan, and 604 family medicine physician records in Puerto Rico.
All 604 in Puerto Rico → Every provider in San Juan → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joany Bourdon, M.D.San Juan, PR 009351043275514
- Catalina Frau Nicole, M.D.San Juan, PR 009351033663919
- Jose Hernandez, M.D.San Juan, PR 009351912961970
- Andrea Otero Rios, MDSan Juan, PR 009351326626995
- Enid Quintana TorresSan Juan, PR 009351588258750
- Brenda Robles, M.DSan Juan, PR 009351902900368
- Ginnette Sanchez, M.D.San Juan, PR 009351790747103
- Alejandra Velez, MDSan Juan, PR 009351154722460
Common questions
What is Karla A. Berrios Sierra, M.D.'s NPI number?
Karla A. Berrios Sierra, M.D.'s National Provider Identifier (NPI) is 1558590059, issued on Jul 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karla A. Berrios Sierra, M.D. located?
The NPPES record lists a practice address at Hospital Universitario DE Adulto, San Juan, PR, 00935. Phone: (787) 754-0101. Providers update this record themselves, so call before visiting.
How can I verify Karla A. Berrios Sierra, M.D.'s license?
NPPES lists Puerto Rico license number 18935, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Karla A. Berrios Sierra, M.D. prescribe under Medicare Part D?
In 2024, Karla A. Berrios Sierra, M.D. had 8,637 Medicare Part D claims for 295 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.