Regan Roat, MD, PHD
NPI 1932693686 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Regan Roat, MD, PHD is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1932693686).
Provider details
- NPI number
- 1932693686
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 1018168 (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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
48 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) |
|---|---|---|
| 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 | 31 | $17 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 17 | $181 |
Typical Medicare-allowed amounts for these services range $17–$181 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 38 | 12 |
| Alendronate Sodium | 19 | — |
| Tirzepatidebrand: Mounjaro | 15 | — |
| Glipizidebrand: Glipizide Er | 14 | — |
| Empagliflozinbrand: Jardiance | 12 | — |
| Semaglutidebrand: Ozempic | 12 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 133 Brookline AveBoston, MA 02215-3904Phone: (617) 421-1000
- 110 Francis St Ste 6aBoston, MA 02215-5501Phone: (617) 667-9344
Registry dates
- Enumerated
- 2018-06-17
- Last updated
- 2024-07-26
- Certified
- 2024-07-26
Frequently asked questions
- What is Regan Roat's NPI number?
- Regan Roat's National Provider Identifier (NPI) is 1932693686, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regan Roat's specialty?
- Regan Roat is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Regan Roat located?
- Regan Roat's practice location on file with NPPES is 1 Joslin Pl, Boston, MA 02215-5394.
- What is Regan Roat's phone number?
- The practice phone number listed in the NPPES registry for Regan Roat is (617) 309-2400.
- Does Regan Roat accept Medicare?
- Regan Roat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Regan Roat's NPI active?
- Yes — Regan Roat's NPI (1932693686) is active in the NPPES registry as of the last update on 2024-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.