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Maria Ponsillo, M.D.
NPI 1396850442 · Internal Medicine Physician · Waltham, MA
Maria Ponsillo, M.D. is a Internal Medicine Physician provider in Waltham, MA (NPI 1396850442).
Provider details
- NPI number
- 1396850442
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 75113 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
200 West St
Waltham, MA 02451-1121
Phone: (781) 434-4226
Street-level locationGet directions
Mailing address
68 Alberta Rd
Chestnut Hill, MA 02467-3171
Registry dates
- Enumerated
- 2006-08-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Maria Ponsillo's NPI number?
- Maria Ponsillo's National Provider Identifier (NPI) is 1396850442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Ponsillo's specialty?
- Maria Ponsillo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Ponsillo located?
- Maria Ponsillo's practice location on file with NPPES is 200 West St, Waltham, MA 02451-1121.
- What is Maria Ponsillo's phone number?
- The practice phone number listed in the NPPES registry for Maria Ponsillo is (781) 434-4226.
- Is Maria Ponsillo's NPI active?
- Yes — Maria Ponsillo's NPI (1396850442) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.