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Colorectal Surgery (Proctology)

Dena R. Nasir, MD

Works at hospitals in Glendale, CA · Petaluma, CA · California

Summary

Dena R. Nasir, MD (Colorectal Surgery (Proctology)) is listed by Medicare at 2 hospitals in Glendale, CA and Petaluma, CA. NPI 1083272819. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Dena R. Nasir, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Colorectal Surgery (Proctology)Primary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Oakland Univ, William Beaumont School Of MedicineMedical school
FemaleGender (as listed)
Providence Medical FoundationGroup practice (+1 more)

Quick answers

Which hospitals does Dena R. Nasir work at?
Medicare's official clinician data lists Dena R. Nasir at 2 hospitals: Glendale Memorial Hospital & Health Center and Petaluma Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Dena R. Nasir see patients?
Medicare's clinician data lists 3 practice locations, including Petaluma, CA, Santa Rosa, CA and Glendale, CA. Call before your visit to confirm the address.
What is Dena R. Nasir's specialty?
Medicare lists Colorectal Surgery (Proctology) as the primary specialty, and also General Surgery.
Does Dena R. Nasir accept Medicare assignment?
Yes. Medicare's clinician data says Dena R. Nasir accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Dena R. Nasir?
(707) 763-1575, as listed in official Medicare / NPI Registry data.
What is Dena R. Nasir's NPI number?
1083272819. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Dena R. Nasir works

Medicare's Facility Affiliation Data lists Dena R. Nasir at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Dena R. Nasir is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Dena R. Nasir as a member of these groups (CMS data updated 2026-10-02).

  • Providence Medical Foundation1,466 clinicians in the group
  • Petar Vukasin M D Inc3 clinicians in the group

Specialties

Find other Colorectal Surgery (Proctology) doctors in California →

Other colorectal surgeons in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All colorectal surgeons in California →

Clinician information

CredentialMD
Medical schoolOakland Univ, William Beaumont School Of Medicine
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1083272819
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians