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

POOJA UPADHYAYA NEIMAN MD
NPI 1023540960
Surgery - Surgical Critical Care in Stanford, CA

Active since March 30, 2017PECOS EnrolledAccepts Medicare Assignment
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 10, 2026, Apr 6, 2026, Jul 1, 2025 and 3 more (6 updates tracked since 2017).

About Pooja Upadhyaya Neiman Md NPPES

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

POOJA UPADHYAYA NEIMAN MD (NPI 1023540960) is an individual surgical critical care provider in Stanford, California, licensed in California (A194349) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Geffen School Of Medicine (2017).

NPPES Registry Identity

NPI1023540960
Entity TypeIndividualFemale
Primary Taxonomy2086S0102X
Provider Legal NamePOOJA UPADHYAYA NEIMANCredential: MD
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Sole ProprietorYes
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2017
Enumeration DateMarch 30, 2017
Last NPPES UpdateSeptember 10, 20266 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2026
✔ NPI 1023540960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Surgical Critical CareAllopathic & Osteopathic Physicians
Taxonomy Code2086S0102X
License✔ Licensed in CA · A194349
Definition
A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedSurgeryTaxonomy 208600000X · License 4301501555 (MI), A194349 (CA)
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License A194349 (CA)
300 PASTEUR DR, Stanford, CA 94305

Other Names 1

Former Name (1)Pooja Upadhyaya

Secondary Practice Locations 2

Location 11001 Potrero Ave Dept OfSan Francisco, CA 94110-3518 · Phone (628) 206-8000
Location 2505 Parnassus AveSan Francisco, CA 94143-2204 · Phone (415) 476-1000

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

Pooja Upadhyaya Neiman Md 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 ID8527338706
PECOS Enrollment IDI20250819002305
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

7

Medicare enrollment records show Pooja Neiman reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Acute Care Hospital
300 PASTEUR DRIVE
Stanford, CA 94305
  • Reassigned Medicare billing, California enrollment
  • 4,258 clinicians in this Medicare group
Children
725 WELCH RD
Palo Alto, CA 94304
  • Reassigned Medicare billing, California enrollment
  • 3,617 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
2403 KEITH STREET
San Francisco, CA 94124
  • Reassigned Medicare billing, California enrollment
  • 1,573 clinicians in this Medicare group
Vascular Surgery
1001 POTRERO AVE RM 3A
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 87 clinicians in this Medicare group
Surgery
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 761 clinicians in this Medicare group
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group

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.

Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305

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 Pooja Neiman's NPI number?

The NPI number for Pooja Neiman is 1023540960. It was assigned to this individual provider in the NPPES registry on March 30, 2017. The provider is also known as Pooja Upadhyaya.

Where is Pooja Neiman located?

Pooja Neiman practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Pooja Neiman's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.

Is Pooja Neiman enrolled in Medicare?

Yes. Pooja Neiman 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 Pooja Neiman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Pooja Neiman reassigns Medicare benefits to 7 organizations: Stanford Health Care (Stanford, CA), Lpch Medical Group Div Of Lucile (Palo Alto, CA), City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA), Ucsf Dept Of Surgery (San Francisco, CA) and 2 more organizations, listed in the Medicare section above. 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 Pooja Neiman'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 Pooja Neiman was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 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.