Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mariann Alperin, M.D., M.S.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in Encinitas, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033266879

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mariann Alperin

Credential M.D., M.S.

Sex Female

Practice address 1200 Garden View Rd, Encinitas, CA, 92024

Phone (800) 926-8273

Fax (888) 539-8781

Enumeration date Jan 4, 2007

Last updated in NPPES Nov 21, 2025

Taxonomy & licenses

207VF0040X Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Allopathic & Osteopathic Physicians · License A102879 (CA) Primary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License A102879 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
101462586	Medicaid	PA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mariann Alperin practice?

The practice location on file with NPPES is in Encinitas, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mariann Alperin?

The National Provider Identifier (NPI) for Mariann Alperin is 1033266879, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-21.