Alireza Abdollah Shamshirsaz, M.D.
NPI 1881804235 · Obstetrics & Gynecology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alireza Abdollah Shamshirsaz, M.D. is a Obstetrics & Gynecology Physician provider in Palo Alto, CA (NPI 1881804235).
Provider details
- NPI number
- 1881804235
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C150314 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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
Mailing address
Additional practice locations (2)
- 200 Hawkins DrIowa City, IA 52242-1009Phone: (319) 356-1616Fax: (319) 384-6004
- 300 Longwood AveBoston, MA 02115-5724Phone: (617) 355-6000
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2023-03-15
- Certified
- 2023-03-15
Frequently asked questions
- What is Alireza Abdollah Shamshirsaz's NPI number?
- Alireza Abdollah Shamshirsaz's National Provider Identifier (NPI) is 1881804235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alireza Abdollah Shamshirsaz's specialty?
- Alireza Abdollah Shamshirsaz is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Alireza Abdollah Shamshirsaz located?
- Alireza Abdollah Shamshirsaz's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Alireza Abdollah Shamshirsaz's phone number?
- The practice phone number listed in the NPPES registry for Alireza Abdollah Shamshirsaz is (650) 497-8000.
- Does Alireza Abdollah Shamshirsaz accept Medicare?
- Alireza Abdollah Shamshirsaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alireza Abdollah Shamshirsaz's NPI active?
- Yes — Alireza Abdollah Shamshirsaz's NPI (1881804235) is active in the NPPES registry as of the last update on 2023-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.