What is Paul Yen's NPI number?

Paul Yen's National Provider Identifier (NPI) is 1255378477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Paul Yen's specialty?

Paul Yen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).

Where is Paul Yen located?

Paul Yen's practice location on file with NPPES is 4940 East Avenue Room B114, Baltimore, MD 21224.

What is Paul Yen's phone number?

The practice phone number listed in the NPPES registry for Paul Yen is (410) 550-4229.

Is Paul Yen's NPI active?

Yes — Paul Yen's NPI (1255378477) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Paul Yen, M.D.

NPI 1255378477 · Endocrinology, Diabetes & Metabolism Physician · Baltimore, MD

Paul Yen, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Baltimore, MD (NPI 1255378477).

Provider details

NPI number: 1255378477
Entity type: Individual
Primary specialty: Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
License: 71446 (MA)

Specialties & taxonomies

Endocrinology, Diabetes & Metabolism PhysicianPrimary207RE0101XLicense 71446 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 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

4940 East Avenue Room B114

Johns Hopkins Bayview Med Center

Baltimore, MD 21224

Phone: (410) 550-4229

Approximate (ZIP-level) locationGet directions

More MD providers

Mailing address

National Institute of Health

Bethesda, MD 20892-0001

Enumerated: 2006-05-31
Last updated: 2007-07-08

Frequently asked questions

What is Paul Yen's NPI number?: Paul Yen's National Provider Identifier (NPI) is 1255378477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Paul Yen's specialty?: Paul Yen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
Where is Paul Yen located?: Paul Yen's practice location on file with NPPES is 4940 East Avenue Room B114, Baltimore, MD 21224.
What is Paul Yen's phone number?: The practice phone number listed in the NPPES registry for Paul Yen is (410) 550-4229.
Is Paul Yen's NPI active?: Yes — Paul Yen's NPI (1255378477) is active in the NPPES registry as of the last update on 2007-07-08.

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