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DR. RINA S MARFATIA M.B.B.S., M.D.
NPI 1508055138
Internal Medicine - Infectious Disease in Greenbrae, CA

Active since October 19, 2007PECOS Enrolled
1100 S ELISEO DR, SUITE 2A, GREENBRAE, CA 94904(415) 795-7000 Get Directions Write a Review

NPPES record last updated: August 1, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Rina S Marfatia M.b.b.s., M.d. NPPES

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

DR. RINA S MARFATIA M.B.B.S., M.D. (NPI 1508055138) is an individual infectious disease provider in Greenbrae, California, licensed in California (A118206) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1508055138
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameDR. RINA S MARFATIACredential: M.B.B.S., M.D.
Location Address1100 S ELISEO DR, SUITE 2AGreenbrae, CA 94904-2017
Mailing Address1100 S Eliseo Dr, Suite 2aGreenbrae, CA 94904-2017 · (415) 795-7000
Phone(415) 795-7000
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateOctober 19, 2007
Last NPPES UpdateAugust 1, 2014
✔ NPI 1508055138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Licenses✔ Licensed in CA · A118206✔ Licensed in TX · P1101
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
1100 S ELISEO DR, Greenbrae, CA 94904
Open in Google Maps ↗

Other Identifiers 3

Medicare PINTXB141341TX
Other8DB346TX · Bcbs
Medicaid287298801TX

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Rina S Marfatia M.b.b.s., M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3870768229
PECOS Enrollment IDI20140827000010
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 Rina Marfatia reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Univ Of California Ucsf
13 mi
Internal Medicine
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 339 clinicians in this Medicare group
NPI 1124439807 (415) 476-1000

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

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
22 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94904 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
$154.04 typical visit price
range $69.07 – $202.63
Typical copayment $38.51 (range $17.26 – $50.65)
Most-billed visit code 99204
Established Patient
$119.61 typical visit price
range $23.44 – $166.64
Typical copayment $29.90 (range $5.86 – $41.66)
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 16

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

PETER UZELAC MD, INC
Specialist
1100 S ELISEO DR, SUITE 107
GREENBRAE, CA 94904
Marin County (415) 925-9409
MFC SURGERY CENTER
Obstetrics & Gynecology (Reproductive Endocrinology)
1100 S ELISEO DR, STE 107
GREENBRAE, CA 94904
Marin County (415) 925-9404
DR. LAURA K. PAK M.D.
Surgery (Vascular Surgery)
1100 S ELISEO DR, SUITE 2A
GREENBRAE, CA 94904
Marin County (415) 464-5400
MARIN ENDOSCOPY CENTER, LLC
Clinic/Center (Ambulatory Surgical)
1100 S ELISEO DR, SUITE 3
GREENBRAE, CA 94904
Marin County (415) 464-0606
PARNELL MEDICAL CORPORATION
Dermatology
1100 S ELISEO DR, SUITE 2
GREENBRAE, CA 94904
Marin County (415) 461-1036
MS. KAREN ANN REYNOLDS L.AC., R.N.
Acupuncturist
1100 S ELISEO DR
GREENBRAE, CA 94904
Marin County (415) 461-3200
MARIN PEDIATRIC ASSOCIATES, A MEDICAL CORPORATION
Pediatrics
1100 S ELISEO DR, STE 106
GREENBRAE, CA 94904
Marin County (415) 461-8828
LISA A DUNDAS AU.D.
Audiologist
1100 S ELISEO DR, 108
GREENBRAE, CA 94904
Marin County (415) 461-9703

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 Rina Marfatia's NPI number?

The NPI number for Rina Marfatia is 1508055138. It was assigned to this individual provider in the NPPES registry on October 19, 2007.

Where is Rina Marfatia located?

Rina Marfatia practices at 1100 S Eliseo Dr Suite 2A, Greenbrae, CA 94904. The listed phone number is (415) 795-7000.

What is Rina Marfatia's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Rina Marfatia enrolled in Medicare?

Yes. Rina Marfatia is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rina Marfatia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rina Marfatia reassigns Medicare benefits to Regents Univ Of California Ucsf (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 Rina Marfatia'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 Rina Marfatia was last updated on August 1, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.