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ROBIN ARASH HATAM D.O.
NPI 1194053785
Internal Medicine in Santa Ana, CA

Active since November 20, 2009PECOS Enrolled
3501 S HARBOR BLVD, SANTA ANA, CA 92704(714) 929-2300 Get Directions Write a Review

NPPES record last updated: December 26, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 26, 2025, Aug 30, 2019 (2 updates tracked since 2019).

About Robin Arash Hatam D.o. NPPES

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

ROBIN ARASH HATAM D.O. (NPI 1194053785) is an individual internal medicine provider in Santa Ana, California, licensed in California (20A11018) and active in the NPI registry since November 2009. He is enrolled in Medicare PECOS and maintains a secondary practice location in Los Angeles.

NPPES Registry Identity

NPI1194053785
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameROBIN ARASH HATAMCredential: D.O.
Location Address3501 S HARBOR BLVDSanta Ana, CA 92704-6919
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203
Phone(714) 929-2300
Sole ProprietorNo
Enumeration DateNovember 20, 2009
Last NPPES UpdateDecember 26, 20252 updates tracked since enumeration
NPPES CertifiedDecember 26, 2025
✔ NPI 1194053785 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 20A11018
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.
3501 S HARBOR BLVD, Santa Ana, CA 92704
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Secondary Practice Location 1

Location 13513 E 1st StLos Angeles, CA 90063-4101 · Phone (323) 859-2660

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robin Arash Hatam D.o. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92704 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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.

Other Providers at the Same Location NPPES 15

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

VAN THANH NGUYEN DO
Obstetrics & Gynecology
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300
ALICIA SONG
Speech-Language Pathologist
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (562) 270-2970
DR. RONNIE ALAS M.D.
Internal Medicine
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300
EILEEN MAY NEPOMUCENO BARRAZA N.P.
Nurse Practitioner
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300
EMAD ALDIN HASHEMI M.D.
Obstetrics & Gynecology
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300
DIEMCHI NGUYENPHUC MD
Obstetrics & Gynecology
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300
BRITTNEY WOLFE
Nurse Practitioner (Family)
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300
HIMA BINDU NATLA M.D.
Internal Medicine
3501 S HARBOR BLVD
SANTA ANA, CA 92704
Orange County (714) 929-2300

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 Robin Hatam's NPI number?

The NPI number for Robin Hatam is 1194053785. It was assigned to this individual provider in the NPPES registry on November 20, 2009.

Where is Robin Hatam located?

Robin Hatam practices at 3501 S Harbor Blvd, Santa Ana, CA 92704. The listed phone number is (714) 929-2300.

What is Robin Hatam's specialty?

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

Is Robin Hatam enrolled in Medicare?

Yes. Robin Hatam is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Robin Hatam was last updated on December 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.