ALLEN W. NAN MD
NPI 1750469326
Obstetrics & Gynecology in Antioch, CA

Q: What is Allen Nan's NPI number?

The NPI number for Allen Nan is 1750469326. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Q: What is Allen Nan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Allen Nan was last updated on December 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 November 01, 2006PECOS Enrolled

5601 DEER VALLEY RD, ANTIOCH, CA 94531(925) 813-6500 Get Directions Write a Review

NPPES record last updated: December 13, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Allen W. Nan Md NPPES

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

ALLEN W. NAN MD (NPI 1750469326) is an individual obstetrics & gynecology provider in Antioch, California, licensed in California (G73566) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750469326

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameALLEN W. NANCredential: MD

Location Address5601 DEER VALLEY RDAntioch, CA 94531-8577

Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262

Phone(925) 813-6500

Sole ProprietorNo

Enumeration DateNovember 1, 2006

Last NPPES UpdateDecember 13, 2021

✔ NPI 1750469326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · G73566

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

5601 DEER VALLEY RD, Antioch, CA 94531

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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)

Allen W. Nan Md 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 94531 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

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.

CHUNG M. KUNG MD

Internal Medicine