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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOY TAN
NPI 1215564927
Anesthesiology in San Jose, CA

Active since March 24, 2020PECOS Enrolled
2105 FOREST AVE, SAN JOSE, CA 95128(408) 947-2500 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Aug 6, 2024, Apr 30, 2024, Mar 24, 2020 (3 updates tracked since 2020).

About Joy Tan NPPES

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

JOY TAN (NPI 1215564927) is an individual anesthesiology provider in San Jose, California, licensed in California (A196099) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in South San Francisco, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1215564927
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameJOY TAN
Location Address2105 FOREST AVESan Jose, CA 95128-1471
Mailing Address2105 Forest AveSan Jose, CA 95128-1471 · (408) 947-2500
Phone(408) 947-2500
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 24, 2020
Last NPPES UpdateOctober 20, 20263 updates tracked since enumeration
NPPES CertifiedOctober 20, 2026
✔ NPI 1215564927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A196099
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2105 FOREST AVE, San Jose, CA 95128
Open in Google Maps ↗

Secondary Practice Location 1

Location 11200 El Camino RealSouth San Francisco, CA 94080-3208 · Phone (650) 742-2000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Joy Tan is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8426596685
PECOS Enrollment IDI20240819003352
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Joy Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America - Anesthesia PC
Same address
Anesthesiology
2105 FOREST AVE
San Jose, CA 95128
  • Reassigned Medicare billing, California enrollment
  • 833 clinicians in this Medicare group
NPI 1851810881 (408) 259-5000
Permanente Medical Group Inc
3.3 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

ANNA NGUYEN DO
Emergency Medicine
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500
RYAN KAR
Perfusionist
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500
BRITTANY NGUYEN PHARMD
Pharmacist
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2685
EMERGENCY PHYSICIANS ASSOCIATES OVERHEAD OPERATING ACCOUNT DENNIS BELO
Emergency Medicine
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500
DR. ALLEN CHRISTIAN PARTONO
Student in an Organized Health Care Education/Training Program
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500
NERISSA KWOK
Pharmacist
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500
THOMAS GILDEA MD
Emergency Medicine
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500
GERALDINE OCMEJA
Physical Therapist
2105 FOREST AVE
SAN JOSE, CA 95128
Santa Clara County (408) 947-2500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joy Tan's NPI number?

The NPI number for Joy Tan is 1215564927. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Joy Tan located?

Joy Tan practices at 2105 Forest Ave, San Jose, CA 95128. The listed phone number is (408) 947-2500.

What is Joy Tan's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Joy Tan enrolled in Medicare?

Yes. Joy Tan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Joy Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joy Tan reassigns Medicare benefits to 2 organizations: Cep America - Anesthesia PC (San Jose, CA) and Permanente Medical Group Inc (Santa Clara, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joy Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joy Tan was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.