NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Kasra Maasumi, M.D.

Interventional Pain Medicine Physician in Rancho Santa Margarita, CA · enumerated 2010 · practices at Zakiat Darojat PA.

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

National Provider Identifier

1306161963

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Kasra Maasumi
Credential M.D.
Sex Male
Practice address Rancho Santa Margarita, CA, 92688
Phone (949) 599-7400
Fax (949) 599-1430
Enumeration date Apr 6, 2010
Last updated in NPPES Mar 14, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License CA118512 (CA) Secondary
2084P2900X Pain Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License CA118512 (CA) Secondary
208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License A118512 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Kasra Maasumi practice?
The practice location on file with NPPES is in Rancho Santa Margarita, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kasra Maasumi?
The National Provider Identifier (NPI) for Kasra Maasumi is 1306161963, 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 2023-03-14.