DR. RALPH CHRISTIAN FENN M.D., PH.D.
NPI 1659564201
Psychiatry & Neurology - Psychiatry in San Francisco, CA

Q: What is Ralph Fenn's NPI number?

The NPI number for Ralph Fenn is 1659564201. It was assigned to this individual provider in the NPPES registry on August 27, 2007.

Q: What is Ralph Fenn's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Ralph Fenn was last updated on March 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 27, 2007

1131 IRVING ST, SAN FRANCISCO, CA 94122(415) 379-0094 Get Directions Write a Review

NPPES record last updated: March 7, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Ralph Christian Fenn M.d., Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RALPH CHRISTIAN FENN M.D., PH.D. (NPI 1659564201) is an individual psychiatry provider in San Francisco, California, licensed in California (A79192) and active in the NPI registry since August 2007.

NPPES Registry Identity

NPI1659564201

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. RALPH CHRISTIAN FENNCredential: M.D., PH.D.

Location Address1131 IRVING STSan Francisco, CA 94122-2108

Mailing Address1131 Irving StSan Francisco, CA 94122-2108

Phone(415) 379-0094

Sole ProprietorYes

Enumeration DateAugust 27, 2007

Last NPPES UpdateMarch 7, 2013

✔ NPI 1659564201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · A79192

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1131 IRVING ST, San Francisco, CA 94122

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Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

68 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

40 services15 patients

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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