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DR. SHANT ASHDJIAN M.D.
NPI 1841502457
Obstetrics & Gynecology in Downey, CA

Active since July 12, 2010PECOS Enrolled
9449 IMPERIAL HWY, SUITE 432, DOWNEY, CA 90242(562) 657-4718(562) 657-4445 Get Directions Write a Review

NPPES record last updated: November 23, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Shant Ashdjian M.d. NPPES

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

DR. SHANT ASHDJIAN M.D. (NPI 1841502457) is an individual obstetrics & gynecology provider in Downey, California, licensed in California (A119907) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841502457
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. SHANT ASHDJIANCredential: M.D.
Location Address9449 IMPERIAL HWY, SUITE 432Downey, CA 90242-2814
Mailing Address9449 Imperial Hwy, Suite 432Downey, CA 90242-2814 · (562) 657-4718 · Fax (562) 657-4445
Phone(562) 657-4718
Fax(562) 657-4445
Sole ProprietorYes
Enumeration DateJuly 12, 2010
Last NPPES UpdateNovember 23, 2021
NPPES CertifiedNovember 23, 2021
✔ NPI 1841502457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A119907
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
9449 IMPERIAL HWY, Downey, CA 90242
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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)

Dr. Shant Ashdjian 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 Shant Ashdjian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
1.1 mi
Health Maintenance Organization
9400 ROSECRANS AVE
Bellflower, CA 90706
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1043242555 (562) 461-3000

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 90242 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
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
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.

DR. STEPHANIE ANNE KINGMAN ANGARITA M.D.
Surgery (Surgical Oncology)
9449 IMPERIAL HWY, ORCHARD A 309
DOWNEY, CA 90242
Los Angeles County (562) 657-2713
NIKKI DU PHARM.D.
Pharmacist (Pharmacotherapy)
9449 IMPERIAL HWY
DOWNEY, CA 90242
Los Angeles County (562) 657-2334
DR. JOON CHA PHARM.D.
Pharmacist
9449 IMPERIAL HWY
DOWNEY, CA 90242
Los Angeles County (562) 657-2026
DR. MICHAEL BENJAMIN BREWER MD
Surgery (Vascular Surgery)
9449 IMPERIAL HWY, ORCHARD MEDICAL OFFICES - BLDG A - SUITE 309
DOWNEY, CA 90242
Los Angeles County (562) 657-2751
JALPA N SHAH PT
Physical Therapist
9449 IMPERIAL HWY, GARDEN MEDICAL OFFICE, 3RD FLOOR, PM&R DEPT.
DOWNEY, CA 90242
Los Angeles County (562) 657-2212
DR. LISA KERESTEDJIAN M.D.
Internal Medicine
9449 IMPERIAL HWY
DOWNEY, CA 90242
Los Angeles County (800) 823-4040
DR. AUSTIN GODFREY EVANS D.O.
Internal Medicine
9449 IMPERIAL HWY
DOWNEY, CA 90242
Los Angeles County (626) 590-4601
KIRTISHA DANIELLE NELSON
Surgery
9449 IMPERIAL HWY
DOWNEY, CA 90242
Los Angeles County (833) 574-2273

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 Shant Ashdjian's NPI number?

The NPI number for Shant Ashdjian is 1841502457. It was assigned to this individual provider in the NPPES registry on July 12, 2010.

Where is Shant Ashdjian located?

Shant Ashdjian practices at 9449 Imperial Hwy Suite 432, Downey, CA 90242. The listed phone number is (562) 657-4718.

What is Shant Ashdjian's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Shant Ashdjian enrolled in Medicare?

Yes. Shant Ashdjian is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Shant Ashdjian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shant Ashdjian reassigns Medicare benefits to Southern California Permanente Medical Group (Bellflower, 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 Shant Ashdjian'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 Shant Ashdjian was last updated on November 23, 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.