Hilda Ag Rock, M.D.
Family Medicine Physician · Winchester, MA
Hilda Ag Rock, M.D. is a family medicine physician with a practice address in Winchester, Massachusetts, and NPI 1477971976, issued on Apr 1, 2014. Check the license (Massachusetts 270300, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Hilda Ag Rock
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 270300 MA
Self-reported in NPPES; status is on the state search - Practice location
- 11 Shore RD, Winchester, MA 01890
- Phone
- (781) 729-1810
- Enumerated
- Apr 1, 2014
- Record last updated
- Jul 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170913000582); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Also registered at 11 Shore RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Burns, FNPFamily Nurse Practitioner1275878720
- Jose Guerra, M.D.Adolescent Medicine (Family Medicine) Physician1043259039
- Heather Jones, MDGeriatric Medicine (Family Medicine) Physician1679591366
- Adrianna Manzi, PAMedical Physician Assistant1508591991
- Wellner Poppe, M.D.Family Medicine Physician1548238157
- Joel Solomon, M.D.Family Medicine Physician1417924440
Verify Hilda Ag Rock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 270300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average family medicine physician in 2024
3,736 Medicare Part D claims for 370 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Atorvastatin Calcium306 claims
- Lisinopril199 claims
- Levothyroxine Sodium161 claims
- Omeprazole152 claims
- Metoprolol Succinate130 claims
- Losartan Potassium113 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Beth Israel Lahey Health Primary Care, IncSouth Hamilton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hilda Ag Rock among 2,265 family medicine physician records in Massachusetts
Hilda Ag Rock, M.D. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2013 · median 2006 among the 1,529 with a school on file
- Record last updated2020 · 59% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family medicine physician records list a practice address in Winchester
They are 9 of the 439 NPPES records with a practice address in Winchester, and 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Winchester → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Catherine Celler, M.D.Winchester, MA 018901427240852
- Aron Chacko, MD, MPHWinchester, MA 018901003490244
- Jeffrey Miner, MDWinchester, MA 018901760477046
- Wellner Poppe, M.D.Winchester, MA 018901548238157
- Emily Samaha, MDWinchester, MA 018901811300353
- Morgan Santhamoorthy, M.D.Winchester, MA 018901952750242
- Joel Solomon, M.D.Winchester, MA 018901417924440
- Rebecca Spoerri-Bowman, D.O.Winchester, MA 018901316114994
Common questions
What is Hilda Ag Rock, M.D.'s NPI number?
Hilda Ag Rock, M.D.'s National Provider Identifier (NPI) is 1477971976, issued on Apr 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Hilda Ag Rock, M.D. located?
The NPPES record lists a practice address at 11 Shore RD, Winchester, MA, 01890. Phone: (781) 729-1810. Providers update this record themselves, so call before visiting.
How can I verify Hilda Ag Rock, M.D.'s license?
NPPES lists Massachusetts license number 270300, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hilda Ag Rock, M.D. prescribe under Medicare Part D?
In 2024, Hilda Ag Rock, M.D. had 3,736 Medicare Part D claims for 370 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Hilda Ag Rock, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.