What is Clark Johnsen's NPI number?

Clark Johnsen's National Provider Identifier (NPI) is 1306335450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Clark Johnsen's specialty?

Clark Johnsen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is Clark Johnsen located?

Clark Johnsen's practice location on file with NPPES is 67 Irving Pl Fl 6, New York, NY 10003-2237.

What is Clark Johnsen's phone number?

The practice phone number listed in the NPPES registry for Clark Johnsen is (332) 334-7846.

Is Clark Johnsen's NPI active?

Yes — Clark Johnsen's NPI (1306335450) is active in the NPPES registry as of the last update on 2023-03-16.

IndividualActive

Clark Johnsen, DO

NPI 1306335450 · Psychiatry Physician · New York, NY

Clark Johnsen, DO is a Psychiatry Physician provider in New York, NY (NPI 1306335450).

Provider details

NPI number: 1306335450
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: No
License: 299739 (NY)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 299739 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(68/100 index)

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

Registry tenure38% of score
8 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

67 Irving Pl Fl 6

New York, NY 10003-2237

Phone: (332) 334-7846

Street-level locationGet directions

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Mailing address