What is James Katis's NPI number?

James Katis's National Provider Identifier (NPI) is 1023117512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Katis's specialty?

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

Where is James Katis located?

James Katis's practice location on file with NPPES is 145 Old Mill Rd, Greenwich, CT 06831-3015.

What is James Katis's phone number?

The practice phone number listed in the NPPES registry for James Katis is (203) 622-1213.

Is James Katis's NPI active?

Yes — James Katis's NPI (1023117512) is active in the NPPES registry as of the last update on 2026-06-07.

IndividualActive

James Katis, MD

NPI 1023117512 · Psychiatry Physician · Greenwich, CT

James Katis, MD is a Psychiatry Physician provider in Greenwich, CT (NPI 1023117512).

Provider details

NPI number: 1023117512
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 010623 (CT)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 010623 (CT)
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

145 Old Mill Rd

Greenwich, CT 06831-3015

Phone: (203) 622-1213

Street-level locationGet directions

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Mailing address