DR. RIMA ASH MD
NPI 1205925484
Psychiatry & Neurology - Neurology in San Francisco, CA

Active since October 12, 2006PECOS EnrolledAccepts Medicare Assignment
400 PARNASSUS AVE # A837, SAN FRANCISCO, CA 94143(415) 353-2273 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Rima Ash Md NPPES

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

DR. RIMA ASH MD (NPI 1205925484) is an individual neurology provider in San Francisco, California, licensed in California (A101286) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Florida College Of Medicine (2004).

NPPES Registry Identity

NPI1205925484
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameDR. RIMA ASHCredential: MD
Location Address400 PARNASSUS AVE # A837San Francisco, CA 94143-0348
Mailing Address88 Hoff St, Apt 201San Francisco, CA 94110-1291 · (415) 516-1841
Sole ProprietorYes
Medical School CMSUniversity Of Florida College Of MedicineGraduated 2004
Enumeration DateOctober 12, 2006
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1205925484 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in CA · A101286✔ Licensed in SC · LL27135
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
400 PARNASSUS AVE # A837, San Francisco, CA 94143

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

Dr. Rima Ash Md 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 ID3274604673
PECOS Enrollment IDI20080612000172
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 Rima Ash 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

Other Providers at the Same Location NPPES

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

Clinical Neuropsychologist
400 PARNASSUS AVE # A837
SAN FRANCISCO, CA 94143

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 Rima Ash's NPI number?

The NPI number for Rima Ash is 1205925484. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Rima Ash located?

Rima Ash practices at 400 Parnassus Ave # A837, San Francisco, CA 94143. The listed phone number is (415) 353-2273.

What is Rima Ash's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Rima Ash enrolled in Medicare?

Yes. Rima Ash 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 Rima Ash's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rima Ash 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 Rima Ash'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 Rima Ash was last updated on February 11, 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.