What is Alan Diamond's NPI number?

Alan Diamond's National Provider Identifier (NPI) is 1457464851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alan Diamond's specialty?

Alan Diamond is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Alan Diamond located?

Alan Diamond's practice location on file with NPPES is 10801 Lockwood Dr, Silver Spring, MD 20901-1556.

What is Alan Diamond's phone number?

The practice phone number listed in the NPPES registry for Alan Diamond is (301) 593-2002.

Is Alan Diamond's NPI active?

Yes — Alan Diamond's NPI (1457464851) is active in the NPPES registry as of the last update on 2016-07-06.

IndividualActive

Alan Diamond, M.D.

NPI 1457464851 · Gastroenterology Physician · Silver Spring, MD

Alan Diamond, M.D. is a Gastroenterology Physician provider in Silver Spring, MD (NPI 1457464851).

Provider details

NPI number: 1457464851
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: D0024245 (MD)

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense D0024245 (MD)
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

10801 Lockwood Dr

Suite 200

Silver Spring, MD 20901-1556

Phone: (301) 593-2002

Fax: (301) 593-4781

Street-level locationGet directions

More MD providers

Mailing address

12510 Prosperity Dr

Silver Spring, MD 20904-1663

Enumerated: 2006-08-17
Last updated: 2016-07-06

Frequently asked questions

What is Alan Diamond's NPI number?: Alan Diamond's National Provider Identifier (NPI) is 1457464851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Alan Diamond's specialty?: Alan Diamond is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Alan Diamond located?: Alan Diamond's practice location on file with NPPES is 10801 Lockwood Dr, Silver Spring, MD 20901-1556.
What is Alan Diamond's phone number?: The practice phone number listed in the NPPES registry for Alan Diamond is (301) 593-2002.
Is Alan Diamond's NPI active?: Yes — Alan Diamond's NPI (1457464851) is active in the NPPES registry as of the last update on 2016-07-06.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.