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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARGARET A MACDONALD MSN, NP-C
NPI 1255850640
Nurse Practitioner - Psychiatric/Mental Health in West Covina, CA

Active since September 17, 2017PECOS EnrolledAccepts Medicare Assignment
1501 W CAMERON AVE STE 300-129, WEST COVINA, CA 91790(916) 351-9400 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 18, 2026, May 10, 2026, Apr 29, 2026 and 4 more (7 updates tracked since 2017).

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

NPI1255850640
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARGARET A MACDONALDCredential: MSN, NP-C
Location Address1501 W CAMERON AVE STE 300-129West Covina, CA 91790-2724
Mailing Address5213 Deville CtBakersfield, CA 93308-7723 · (310) 251-6672
Phone(916) 351-9400
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateSeptember 17, 2017
Last NPPES UpdateJune 19, 20267 updates tracked since enumeration
NPPES CertifiedJune 19, 2026
✔ NPI 1255850640 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · 95007356
Also ListedNurse PractitionerTaxonomy 363L00000X · License 95007356 (CA)
1501 W CAMERON AVE STE 300-129, West Covina, CA 91790
Open in Google Maps ↗

Secondary Practice Locations 33

Location 1225 W Hospitality Ln # 225201PSan Bernardino, CA 92408-3237 · Phone (916) 351-9400
Location 21101 Maidu DrAuburn, CA 95603-5864 · Phone (916) 351-9400
Location 32222 Pacific AveStockton, CA 95204-5334 · Phone (916) 351-9400
Location 42440 Professional DrRoseville, CA 95661-7773 · Phone (916) 351-9400
Location 55441 Aldrin Ct Ste ABakersfield, CA 93313-2194 · Phone (916) 351-9400
Location 64025 N Fresno StFresno, CA 93726-4026 · Phone (916) 351-9400
Location 72345 Fletcher PkwyEl Cajon, CA 92020-2134 · Phone (916) 351-9400
Location 89381 E Stockton Blvd Ste 220Elk Grove, CA 95624-5070 · Phone (916) 351-9400
Location 92008 W Dorothea Ave Ste 203Visalia, CA 93277-7300 · Phone (916) 351-9400
Location 10509 13th St Ste 8Modesto, CA 95354-2444 · Phone (916) 351-9400
Location 11888 4th St Ste 12San Rafael, CA 94901-3284 · Phone (916) 351-9400
Location 12510 Plaza Dr Ste 170Folsom, CA 95630-4790 · Phone (916) 351-9400 · Fax (916) 351-9449
Location 137177 Brockton Ave Ste 444ARiverside, CA 92506-2635 · Phone (916) 351-9400
Location 14414 W 21st StMerced, CA 95340-3718 · Phone (916) 351-9400
Location 157365 Carnelian St Ste 222FRancho Cucamonga, CA 91730-1157 · Phone (916) 351-9400
Location 1615720 Ventura Blvd Ste 210Encino, CA 91436-2954 · Phone (916) 351-9400
Location 172062 Talbert Dr Ste 100Chico, CA 95928-7718 · Phone (916) 351-9400
Location 183711 Long Beach Blvd Ste 4045Long Beach, CA 90807-3320 · Phone (916) 351-9400
Location 19169 Hartnell Ave Ste 110Redding, CA 96002-1849 · Phone (916) 351-9400
Location 2055 Hitchcock Way Ste 209Santa Barbara, CA 93105-5635 · Phone (916) 351-9400 · Fax (916) 351-9449
Location 21355 W Olive Ave Ste 3El Centro, CA 92243-3043 · Phone (916) 351-9400 · Fax (916) 351-9449
Location 221040 Park Ave Ste 200-ASan Jose, CA 95126-3075 · Phone (916) 351-9400
Location 231254 Mission St Ste 220San Francisco, CA 94103-2706 · Phone (916) 351-9400
Location 2444240 Fremont BlvdFremont, CA 94538-6000 · Phone (916) 351-9400
Location 25622 Jackson St Unit 103Fairfield, CA 94533-6195 · Phone (916) 351-9400
Location 26634 H StEureka, CA 95501-1053 · Phone (916) 351-9400
Location 2730 E San Joaquin St Ste 203BSalinas, CA 93901-2947 · Phone (916) 351-9400
Location 282955 Main St Ste 110-KIrvine, CA 92614-5909 · Phone (916) 351-9400
Location 293200 4th Ave Ste 200GSan Diego, CA 92103-5716 · Phone (916) 351-9400
Location 301372 N Main St Ste 206-1Walnut Creek, CA 94596-4692 · Phone (916) 351-9400
Location 311245 W 6th StCorona, CA 92882-1870 · Phone (916) 351-9400
Location 322386 Fair Oaks BlvdSacramento, CA 95825-4741 · Phone (916) 351-9400
Location 331260 Mission St Ste 220San Francisco, CA 94103-2706 · Phone (916) 351-9400 ext. 600 · Fax (916) 351-9449

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID9931461613
PECOS Enrollment IDI20200219001059
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
303 services68 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
303 services68 patients

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.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

What insurance does Margaret Macdonald accept?

Health plans from Providence Health Plan list Margaret Macdonald as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

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 58 days 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.