James F. Mackin, M.D., LLC
NPI 1194995373 · Endocrinology, Diabetes & Metabolism Physician · Chevy Chase, MD
James F. Mackin, M.D., LLC is a Endocrinology, Diabetes & Metabolism Physician organization in Chevy Chase, MD (NPI 1194995373).
Provider details
- NPI number
- 1194995373
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- James Mackin, M.D.(301) 657-0802
- License
- D0037678 (MD)
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
18 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
- 2008-03-04
- Last updated
- 2010-04-06
Frequently asked questions
- What is James F. Mackin, M.D., LLC's NPI number?
- James F. Mackin, M.D., LLC's National Provider Identifier (NPI) is 1194995373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is James F. Mackin, M.D., LLC?
- James F. Mackin, M.D., LLC is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is James F. Mackin, M.D., LLC located?
- James F. Mackin, M.D., LLC's practice location on file with NPPES is 5454 Wisconsin Ave, Chevy Chase, MD 20815-6901.
- What is James F. Mackin, M.D., LLC's phone number?
- The practice phone number listed in the NPPES registry for James F. Mackin, M.D., LLC is (301) 657-0802.
- Who is the authorized official for James F. Mackin, M.D., LLC?
- The authorized official listed on James F. Mackin, M.D., LLC's NPPES record is James Mackin, M.D.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is James F. Mackin, M.D., LLC's NPI active?
- Yes — James F. Mackin, M.D., LLC's NPI (1194995373) is active in the NPPES registry as of the last update on 2010-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.