MARY M AHMADIAN N.P.
NPI 1952812448
Nurse Practitioner - Acute Care in Irvine, CA
About Mary M Ahmadian N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY M AHMADIAN N.P. (NPI 1952812448) is an individual acute care provider in Irvine, California, licensed in California (95007280) and active in the NPI registry since October 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mary M Ahmadian N.p. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Mary Ahmadian reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Costa Mesa, CA 92626
- Reassigned Medicare billing, California enrollment
- 38 clinicians in this Medicare group
Torrance, CA 90505
- Reassigned Medicare billing, California enrollment
- 13 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92614 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mary Ahmadian's NPI number?
The NPI number for Mary Ahmadian is 1952812448. It was assigned to this individual provider in the NPPES registry on October 24, 2017.
Where is Mary Ahmadian located?
Mary Ahmadian practices at Global Transitional Care Suite 100 2 Executive Circle, Irvine, CA 92614. The listed phone number is (949) 679-3210.
What is Mary Ahmadian's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Mary Ahmadian enrolled in Medicare?
Yes. Mary Ahmadian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mary Ahmadian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ahmadian reassigns Medicare benefits to 2 organizations: Global Transitional Care, LLC (Costa Mesa, CA) and South Bay Gastroenterology Medical Group (Torrance, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Ahmadian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mary Ahmadian was last updated on October 24, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mary M Ahmadian, N.P. · NPI 1952812448
Acute Care physician in Irvine, California. Individual provider, active in the CMS NPPES registry since October 24, 2017.
## Identity
- **NPI:** 1952812448 (Entity type: Individual)
- **Enumerated:** October 24, 2017
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 95007280 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** GLOBAL TRANSITIONAL CARE SUITE 100, 2 EXECUTIVE CIRCLE, Irvine, CA 92614
- **Phone:** (949) 679-3210
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Global Transitional Care, LLC (NPI 1245630607, Costa Mesa, CA); South Bay Gastroenterology Medical Group (NPI 1609893619, Torrance, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** October 24, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1952812448) · Data from the CMS NPPES public registry.