Marielle Baldwin, MD
NPI 1396164877 · Family Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marielle Baldwin, MD is a Family Medicine Physician provider in Boston, MA (NPI 1396164877).
Provider details
- NPI number
- 1396164877
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 270061 (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
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
103 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 | 69 | $102 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 34 | $123 |
Typical Medicare-allowed amounts for these services range $102–$123 (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 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 115 | 26 |
| Gabapentin | 83 | 15 |
| Oxycodone Hcl | 83 | — |
| Omeprazole | 70 | 13 |
| Losartan Potassium | 69 | 14 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 56 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-10
- Last updated
- 2024-03-11
- Certified
- 2024-03-11
Frequently asked questions
- What is Marielle Baldwin's NPI number?
- Marielle Baldwin's National Provider Identifier (NPI) is 1396164877, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marielle Baldwin's specialty?
- Marielle Baldwin is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marielle Baldwin located?
- Marielle Baldwin's practice location on file with NPPES is 11 Melnea Cass Blvd, Boston, MA 02119-4401.
- What is Marielle Baldwin's phone number?
- The practice phone number listed in the NPPES registry for Marielle Baldwin is (617) 414-2080.
- Does Marielle Baldwin accept Medicare?
- Marielle Baldwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marielle Baldwin's NPI active?
- Yes — Marielle Baldwin's NPI (1396164877) is active in the NPPES registry as of the last update on 2024-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.