Hilda Rock, M.D.
NPI 1477971976 · Family Medicine Physician · Winchester, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hilda Rock, M.D. is a Family Medicine Physician provider in Winchester, MA (NPI 1477971976).
Provider details
- NPI number
- 1477971976
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 270300 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
767 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 304 | $141 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 164 | $18 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 113 | $145 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 81 | $100 |
| Administration of Influenza Virus VaccineG0008 | 37 | $35 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians and |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 306 | 93 |
| Lisinopril | 199 | 58 |
| Levothyroxine Sodium | 161 | 49 |
| Omeprazole | 152 | 40 |
| Metoprolol Succinate | 130 | 43 |
| Losartan Potassium | 113 | 36 |
| Simvastatin | 92 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-01
- Last updated
- 2020-07-06
- Certified
- 2020-07-06
Frequently asked questions
- What is Hilda Rock's NPI number?
- Hilda Rock's National Provider Identifier (NPI) is 1477971976, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hilda Rock's specialty?
- Hilda Rock is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hilda Rock located?
- Hilda Rock's practice location on file with NPPES is 11 Shore Rd, Winchester, MA 01890-2821.
- What is Hilda Rock's phone number?
- The practice phone number listed in the NPPES registry for Hilda Rock is (781) 729-1810.
- Does Hilda Rock accept Medicare?
- Hilda Rock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hilda Rock's NPI active?
- Yes — Hilda Rock's NPI (1477971976) is active in the NPPES registry as of the last update on 2020-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.