Daniel Griffin, MD
NPI 1831779867 · Endocrinology, Diabetes & Metabolism Physician · Portland, ME
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Griffin, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Portland, ME (NPI 1831779867).
Provider details
- NPI number
- 1831779867
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD30506 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$128 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-13
- Last updated
- 2026-06-02
- Certified
- 2026-06-02
Frequently asked questions
- What is Daniel Griffin's NPI number?
- Daniel Griffin's National Provider Identifier (NPI) is 1831779867, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Griffin's specialty?
- Daniel Griffin is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Griffin located?
- Daniel Griffin's practice location on file with NPPES is 84 Marginal Way Ste 700, Portland, ME 04101-2481.
- What is Daniel Griffin's phone number?
- The practice phone number listed in the NPPES registry for Daniel Griffin is (207) 774-5816.
- Does Daniel Griffin accept Medicare?
- Daniel Griffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Griffin's NPI active?
- Yes — Daniel Griffin's NPI (1831779867) is active in the NPPES registry as of the last update on 2026-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.