Stephan Philip Leonhardt Altmayer, MD
NPI 1437728821 · Internal Medicine Physician · Framingham, MA
Stephan Philip Leonhardt Altmayer, MD is a Internal Medicine Physician provider in Framingham, MA (NPI 1437728821).
Provider details
- NPI number
- 1437728821
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 289784 (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
5 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
Mailing address
Registry dates
- Enumerated
- 2021-06-21
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is Stephan Philip Leonhardt Altmayer's NPI number?
- Stephan Philip Leonhardt Altmayer's National Provider Identifier (NPI) is 1437728821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephan Philip Leonhardt Altmayer's specialty?
- Stephan Philip Leonhardt Altmayer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephan Philip Leonhardt Altmayer located?
- Stephan Philip Leonhardt Altmayer's practice location on file with NPPES is 115 Lincoln St, Framingham, MA 01702-6358.
- What is Stephan Philip Leonhardt Altmayer's phone number?
- The practice phone number listed in the NPPES registry for Stephan Philip Leonhardt Altmayer is (508) 383-1000.
- Is Stephan Philip Leonhardt Altmayer's NPI active?
- Yes — Stephan Philip Leonhardt Altmayer's NPI (1437728821) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.