What is Timothy Holtz's NPI number?

Timothy Holtz's National Provider Identifier (NPI) is 1235001793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Timothy Holtz's specialty?

Timothy Holtz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Timothy Holtz located?

Timothy Holtz's practice location on file with NPPES is 950 New Hampshire Ave Nw, Washington, DC 20037-2301.

What is Timothy Holtz's phone number?

The practice phone number listed in the NPPES registry for Timothy Holtz is (202) 994-3624.

Is Timothy Holtz's NPI active?

Yes — Timothy Holtz's NPI (1235001793) is active in the NPPES registry as of the last update on 2025-09-23.

IndividualActive

Timothy Holtz

NPI 1235001793 · Internal Medicine Physician · Washington, DC

Timothy Holtz is a Internal Medicine Physician provider in Washington, DC (NPI 1235001793).

Provider details

NPI number: 1235001793
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Sex: Male
Sole proprietor: Yes
License: 48427 (GA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 48427 (GA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

950 New Hampshire Ave Nw

Washington, DC 20037-2301

Phone: (202) 994-3624

Street-level locationGet directions

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Mailing address