Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mariel Muriel Pastrana MD Inc

Q: What type of organization is Mariel Muriel Pastrana MD Inc?

Mariel Muriel Pastrana MD Inc is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in San Ramon, CA · enumerated 2018 · authorized official Mariel Pastrana, President.

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

National Provider Identifier

1760975445

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Mariel Muriel Pastrana MD Inc

Practice address 4364 Gardenia St, San Ramon, CA, 94582

Phone (770) 289-8185

Enumeration date Jun 7, 2018

Last updated in NPPES Jun 7, 2018

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A127358 (CA) Primary

Authorized official

Name Mariel Pastrana

Title President

Phone (770) 289-8185

Other identifiers

Identifier	Type	State	Issuer
A127358	Other	CA	LICENSE

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

What type of organization is Mariel Muriel Pastrana MD Inc?

Mariel Muriel Pastrana MD Inc is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-07.