Michelle Duffelmeyer, MD
NPI 1669486395 · Internal Medicine Physician · Amherst, MA
Michelle Duffelmeyer, MD is a Internal Medicine Physician provider in Amherst, MA (NPI 1669486395).
Provider details
- NPI number
- 1669486395
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 156170 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2014-09-30
Frequently asked questions
- What is Michelle Duffelmeyer's NPI number?
- Michelle Duffelmeyer's National Provider Identifier (NPI) is 1669486395, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Duffelmeyer's specialty?
- Michelle Duffelmeyer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Duffelmeyer located?
- Michelle Duffelmeyer's practice location on file with NPPES is 150 Infirmary Way, Amherst, MA 01003-9288.
- What is Michelle Duffelmeyer's phone number?
- The practice phone number listed in the NPPES registry for Michelle Duffelmeyer is (413) 577-5000.
- Is Michelle Duffelmeyer's NPI active?
- Yes — Michelle Duffelmeyer's NPI (1669486395) is active in the NPPES registry as of the last update on 2014-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.