What is Shiven Chaudhry's NPI number?

Shiven Chaudhry's National Provider Identifier (NPI) is 1528594801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Shiven Chaudhry's specialty?

Shiven Chaudhry is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Shiven Chaudhry located?

Shiven Chaudhry's practice location on file with NPPES is 20642 John Dr, Castro Valley, CA 94546-5103.

What is Shiven Chaudhry's phone number?

The practice phone number listed in the NPPES registry for Shiven Chaudhry is (510) 785-5000.

Does Shiven Chaudhry accept Medicare?

Shiven Chaudhry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Shiven Chaudhry's NPI active?

Yes — Shiven Chaudhry's NPI (1528594801) is active in the NPPES registry as of the last update on 2025-06-10.

IndividualActiveAccepts Medicare

Shiven Chaudhry, MD

NPI 1528594801 · Internal Medicine Physician · Castro Valley, CA

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Shiven Chaudhry, MD is a Internal Medicine Physician provider in Castro Valley, CA (NPI 1528594801).

Provider details

NPI number: 1528594801
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: A159399 (CA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense A159399 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(79/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
9 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
6 documented practice locations

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

20642 John Dr

Castro Valley, CA 94546-5103

Phone: (510) 785-5000

Street-level locationGet directions

More CA providers

Mailing address

5725 W Las Positas Blvd

Pleasanton, CA 94588-4054

Additional practice locations (5)

3269 N Stockton Hill Rd
Kingman, AZ 86409-3619
Phone: (928) 757-2101
5725 W Las Positas Blvd
Pleasanton, CA 94588-4054
Phone: (925) 847-3000
300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
8700 Beverly Blvd Ste 5512
West Hollywood, CA 90048-1804
Phone: (310) 423-5252
Fax: (310) 423-8441
10624 S Eastern Ave # A-955
Henderson, NV 89052-2982
Phone: (792) 800-5393

Enumerated: 2017-05-05
Last updated: 2025-06-10
Certified: 2025-06-10

Frequently asked questions

What is Shiven Chaudhry's NPI number?: Shiven Chaudhry's National Provider Identifier (NPI) is 1528594801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Shiven Chaudhry's specialty?: Shiven Chaudhry is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Shiven Chaudhry located?: Shiven Chaudhry's practice location on file with NPPES is 20642 John Dr, Castro Valley, CA 94546-5103.
What is Shiven Chaudhry's phone number?: The practice phone number listed in the NPPES registry for Shiven Chaudhry is (510) 785-5000.
Does Shiven Chaudhry accept Medicare?: Shiven Chaudhry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Shiven Chaudhry's NPI active?: Yes — Shiven Chaudhry's NPI (1528594801) is active in the NPPES registry as of the last update on 2025-06-10.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.