UDAYSANKAR CHOCKANATHAN
NPI 1316798325
Psychiatry & Neurology - Psychiatry in San Francisco, CA

Q: What is Udaysankar Chockanathan's NPI number?

The NPI number for Udaysankar Chockanathan is 1316798325. It was assigned to this individual provider in the NPPES registry on March 28, 2024.

Q: What is Udaysankar Chockanathan's specialty?

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

Active since March 28, 2024PECOS Enrolled

675 18TH ST, SAN FRANCISCO, CA 94143(415) 476-7000 Get Directions Write a Review

NPPES record last updated: September 12, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 12, 2025, Aug 14, 2024, Jun 22, 2024 (3 updates tracked since 2024).

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About Udaysankar Chockanathan NPPES

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

UDAYSANKAR CHOCKANATHAN (NPI 1316798325) is an individual psychiatry provider in San Francisco, California, licensed in California (15120) and active in the NPI registry since March 2024. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316798325

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameUDAYSANKAR CHOCKANATHAN

Location Address675 18TH STSan Francisco, CA 94143-4200

Mailing Address675 18th StSan Francisco, CA 94143-4200 · (415) 476-7000

Phone(415) 476-7000

Sole ProprietorNo

Enumeration DateMarch 28, 2024

Last NPPES UpdateSeptember 12, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 12, 2025

✔ NPI 1316798325 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 · 15120

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.

675 18TH ST, San Francisco, CA 94143

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Udaysankar Chockanathan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$202.35 typical visit price

range $69.00 – $202.35

Typical copayment $50.58 (range $17.25 – $50.58)

Most-billed visit code 99205

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

CAROLINE CHIU

Student in an Organized Health Care Education/Training Program