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

SUNIDHI SINGH
NPI 1447900170
Obstetrics & Gynecology in Sunnyvale, CA

Q: What is Sunidhi Singh's NPI number?

The NPI number for Sunidhi Singh is 1447900170. It was assigned to this individual provider in the NPPES registry on March 25, 2022.

Q: What is Sunidhi Singh'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 Sunidhi Singh was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 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.

Active since March 25, 2022PECOS Enrolled

301 OLD SAN FRANCISCO RD, SUNNYVALE, CA 94086(408) 730-4240 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Sunidhi Singh NPPES

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

SUNIDHI SINGH (NPI 1447900170) is an individual obstetrics & gynecology provider in Sunnyvale, California, licensed in California (209815) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1447900170

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameSUNIDHI SINGH

Location Address301 OLD SAN FRANCISCO RDSunnyvale, CA 94086-6386

Mailing AddressPo Box 276950Sacramento, CA 95827-6950

Phone(408) 730-4240

Sole ProprietorNo

Medical School CMSOtherGraduated 2022

Enumeration DateMarch 25, 2022

Last NPPES UpdateSeptember 14, 2026

NPPES CertifiedSeptember 14, 2026

✔ NPI 1447900170 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 · 209815

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.

301 OLD SAN FRANCISCO RD, Sunnyvale, CA 94086

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID244799054

PECOS Enrollment IDI20260821004718

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 Reassignment

Medicare enrollment records show Sunidhi Singh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation

8.7 mi

Multi-Specialty

795 EL CAMINO REAL
Palo Alto, CA 94301

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1013950807 (650) 321-4121

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94086 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

$156.67 typical visit price

range $70.37 – $206.04

Typical copayment $39.16 (range $17.59 – $51.51)

Most-billed visit code 99204

Established Patient

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

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.

DR. TAN MICHAEL NGUYEN MD

Internal Medicine