Madeline Keyes, MD
NPI 1780066910 · Neonatal-Perinatal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madeline Keyes, MD is a Neonatal-Perinatal Medicine Physician provider in Boston, MA (NPI 1780066910).
Provider details
- NPI number
- 1780066910
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 273325 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- Massachusetts General Hospital55 Fruit St.Boston, MA 02114Phone: (617) 726-2687
Registry dates
- Enumerated
- 2015-06-24
- Last updated
- 2022-05-11
- Certified
- 2022-05-11
Frequently asked questions
- What is Madeline Keyes's NPI number?
- Madeline Keyes's National Provider Identifier (NPI) is 1780066910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madeline Keyes's specialty?
- Madeline Keyes is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Madeline Keyes located?
- Madeline Keyes's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Madeline Keyes's phone number?
- The practice phone number listed in the NPPES registry for Madeline Keyes is (617) 355-6000.
- Does Madeline Keyes accept Medicare?
- Madeline Keyes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Madeline Keyes's NPI active?
- Yes — Madeline Keyes's NPI (1780066910) is active in the NPPES registry as of the last update on 2022-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.