MARGARET A MACDONALD MSN, NP-C
NPI 1255850640
Nurse Practitioner - Psychiatric/Mental Health in West Covina, CA
About Margaret A Macdonald Msn, Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET A MACDONALD MSN, NP-C (NPI 1255850640) is an individual psychiatric/mental health provider in West Covina, California, licensed in California (95007356) and active in the NPI registry since September 2017. She is enrolled in Medicare PECOS, maintains 33 additional practice locations, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 33
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
Margaret A Macdonald Msn, Np-c 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 Reassignment
Medicare enrollment records show Margaret Macdonald reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Folsom, CA 95630
- Reassigned Medicare billing, California enrollment
- 99 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 2
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 91790 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 Margaret Macdonald's NPI number?
The NPI number for Margaret Macdonald is 1255850640. It was assigned to this individual provider in the NPPES registry on September 17, 2017.
Where is Margaret Macdonald located?
Margaret Macdonald practices at 1501 W Cameron Ave Ste 300-129, West Covina, CA 91790. The listed phone number is (916) 351-9400.
What is Margaret Macdonald's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Margaret Macdonald enrolled in Medicare?
Yes. Margaret Macdonald 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 organization bills Medicare for Margaret Macdonald's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Macdonald reassigns Medicare benefits to Hisham Soliman MD Inc (Folsom, CA). The 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 Margaret Macdonald'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 Margaret Macdonald was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Margaret A Macdonald, MSN, NP-C · NPI 1255850640
Psychiatric/Mental Health physician in West Covina, California. Individual provider, active in the CMS NPPES registry since September 17, 2017.
## Identity
- **NPI:** 1255850640 (Entity type: Individual)
- **Enumerated:** September 17, 2017
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 95007356 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1501 W CAMERON AVE STE 300-129, West Covina, CA 91790-2724
- **Phone:** (916) 351-9400
## 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:** Hisham Soliman MD Inc (NPI 1700199080, Folsom, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** June 19, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1255850640) · Data from the CMS NPPES public registry.