Frances Hayes, MD
NPI 1528058856 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frances Hayes, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1528058856).
Provider details
- NPI number
- 1528058856
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- 204397 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
311 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 | 151 | $102 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $138 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 40 | $150 |
| 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 | 29 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 16 | $196 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alendronate Sodium | 142 | 41 |
| Testosterone | 127 | 20 |
| Testosterone Cypionate | 78 | 12 |
| Levothyroxine Sodium | 67 | 20 |
| Abaloparatidebrand: Tymlos | 25 | — |
| Estradiolbrand: Estradiol (twice Weekly) | 21 | — |
| Hydrochlorothiazide | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-27
- Last updated
- 2025-09-11
Frequently asked questions
- What is Frances Hayes's NPI number?
- Frances Hayes's National Provider Identifier (NPI) is 1528058856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frances Hayes's specialty?
- Frances Hayes is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frances Hayes located?
- Frances Hayes's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Frances Hayes's phone number?
- The practice phone number listed in the NPPES registry for Frances Hayes is (617) 726-8433.
- Does Frances Hayes accept Medicare?
- Frances Hayes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frances Hayes's NPI active?
- Yes — Frances Hayes's NPI (1528058856) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.