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HAMTA JAFARI M.D.
NPI 1285947804
Internal Medicine in Oakland, CA

Active since July 24, 2010PECOS Enrolled
1411 E 31ST ST, INTERNAL MEDICINE DEPARTMENT, OAKLAND, CA 94602(510) 437-4800 Get Directions Write a Review

NPPES record last updated: December 17, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Hamta Jafari M.d. NPPES

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

HAMTA JAFARI M.D. (NPI 1285947804) is an individual internal medicine provider in Oakland, California, licensed in California (A118827) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1285947804
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameHAMTA JAFARICredential: M.D.
Location Address1411 E 31ST ST, INTERNAL MEDICINE DEPARTMENTOakland, CA 94602-1018
Mailing Address1411 E 31st St, Internal Medicine DepartmentOakland, CA 94602-1018 · (415) 413-7313
Phone(510) 437-4800
Sole ProprietorNo
Enumeration DateJuly 24, 2010
Last NPPES UpdateDecember 17, 2021
✔ NPI 1285947804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A118827
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1411 E 31ST ST, Oakland, CA 94602
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hamta Jafari M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Hamta Jafari reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
11 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200

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 94602 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 20

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

MS. YVONNE DIANE ESCARSEGA MSW
Social Worker (Clinical)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4373
MR. JUAN CASILLAS JR. NP
Nurse Practitioner (Family)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4800
SADHANA SAMANT MD
Obstetrics & Gynecology
1411 E 31ST ST, OAKCARE MEDICAL GROUP
OAKLAND, CA 94602
Alameda County (510) 437-4323
PATRICIA SCOTT MEYER PA
Clinical Nurse Specialist (Emergency)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (209) 342-2300
NATHALIE BALOGUN MSW MPH
Social Worker (Clinical)
1411 E 31ST ST, ALAMEDA COUNTY MEDICAL CENTER - MEDICAL SOCAL WORK SRVC
OAKLAND, CA 94602
Alameda County (510) 437-4949
CYNTHIA MARIE ROWDEN RN
Registered Nurse (Ambulatory Care)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4373
DR. KAYLA ENRIQUEZ MD
Emergency Medicine
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4564
DR. CHERYL LIN PARK M.D.
Surgery
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4743

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 Hamta Jafari's NPI number?

The NPI number for Hamta Jafari is 1285947804. It was assigned to this individual provider in the NPPES registry on July 24, 2010.

Where is Hamta Jafari located?

Hamta Jafari practices at 1411 E 31st St Internal Medicine Department, Oakland, CA 94602. The listed phone number is (510) 437-4800.

What is Hamta Jafari's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Hamta Jafari enrolled in Medicare?

Yes. Hamta Jafari is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Hamta Jafari's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hamta Jafari 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 Hamta Jafari'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 Hamta Jafari was last updated on December 17, 2021. 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.