MRS. MELISSA MARIE DONALDSON
NPI 1093900649
Student in an Organized Health Care Education/Training Program in San Francisco, CA

Active since September 06, 2007PECOS EnrolledAccepts Medicare Assignment
1550 TREAT AVE, SAN FRANCISCO, CA 94110(415) 554-1100 Get Directions Write a Review

NPPES record last updated: January 3, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Melissa Marie Donaldson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. MELISSA MARIE DONALDSON (NPI 1093900649) is an individual student in an organized health care education/training program in San Francisco, California and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1093900649
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameMRS. MELISSA MARIE DONALDSON
Location Address1550 TREAT AVESan Francisco, CA 94110-5234
Mailing Address1550 Treat AveSan Francisco, CA 94110-5234 · (415) 554-1100
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateSeptember 6, 2007
Last NPPES UpdateJanuary 3, 2022
✔ NPI 1093900649 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
1550 TREAT AVE, San Francisco, CA 94110

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

Mrs. Melissa Marie Donaldson 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 ID7214421601
PECOS Enrollment IDI20251212001605
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.

Medicare Billing Reassignment

Medicare enrollment records show Melissa Donaldson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Marriage & Family Therapist
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Student in an Organized Health Care Education/Training Program
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Counselor (Mental Health)
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Counselor (Mental Health)
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Community Health Worker
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Counselor
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Social Worker (Clinical)
1550 TREAT AVE
SAN FRANCISCO, CA 94110
Counselor (Mental Health)
1550 TREAT AVE
SAN FRANCISCO, CA 94110

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 Melissa Donaldson's NPI number?

The NPI number for Melissa Donaldson is 1093900649. It was assigned to this individual provider in the NPPES registry on September 6, 2007.

Where is Melissa Donaldson located?

Melissa Donaldson practices at 1550 Treat Ave, San Francisco, CA 94110. The listed phone number is (415) 554-1100.

What is Melissa Donaldson's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Melissa Donaldson enrolled in Medicare?

Yes. Melissa Donaldson 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 Melissa Donaldson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Donaldson reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, 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 Melissa Donaldson'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 Melissa Donaldson was last updated on January 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.