Adrian B. Graham Sierra, M.D.
General Practice Physician · Ponce, PR
Adrian B. Graham Sierra, M.D. is a general practice physician with a practice address in Ponce, Puerto Rico, and NPI 1700096211, issued on May 23, 2007. Check the license (Puerto Rico 12926, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Adrian B. Graham Sierra
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 12926 PR
Self-reported in NPPES; status is on the state search - Practice location
- Damas Hospital, Ponce, PR 00733
- Phone
- (787) 840-1172
- Enumerated
- May 23, 2007
- Record last updated
- Sep 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (787) 259-7536
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Verify Adrian B. Graham 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 12926Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average general practice physician in 2024
173 Medicare Part D claims for 26 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Synthroid14 claims
- Temazepam12 claims
- Azithromycin11 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.
Adrian B. Graham Sierra among 4,170 general practice physician records in Puerto Rico
Adrian B. Graham Sierra, M.D. is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 51% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2010 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
230 general practice physician records list a practice address in Ponce
They are 230 of the 3,338 NPPES records with a practice address in Ponce, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Ponce → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Eduardo Matos Postigo, MD LICENSE 11827Ponce, PR 007331629274162
- Daniel Collado, M.D.Ponce, PR 007321053526723
- Mariemma Lopez, MDPonce, PR 007321740491174
- Wanda Pacheco, M.D.Ponce, PR 007321285852061
- Karen Ruperto-Rivera, MDPonce, PR 007321861409781
- Jaime Belardo, M.D.Ceiba, PR 007351932261401
- Deryck Bermudez Rivera, M.D.Ceiba, PR 007351477700128
- Cecilia Catala, MDPonce, PR 007311578624045
Common questions
What is Adrian B. Graham Sierra, M.D.'s NPI number?
Adrian B. Graham Sierra, M.D.'s National Provider Identifier (NPI) is 1700096211, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Adrian B. Graham Sierra, M.D. located?
The NPPES record lists a practice address at Damas Hospital, Ponce, PR, 00733. Phone: (787) 840-1172. Providers update this record themselves, so call before visiting.
How can I verify Adrian B. Graham Sierra, M.D.'s license?
NPPES lists Puerto Rico license number 12926, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Adrian B. Graham Sierra, M.D. prescribe under Medicare Part D?
In 2024, Adrian B. Graham Sierra, M.D. had 173 Medicare Part D claims for 26 beneficiaries; the average among general practice physician prescribers was 3,030. 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.