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RASAM HAJIANNASAB MD
NPI 1710549878
Pathology - Anatomic Pathology & Clinical Pathology in Rancho Dominguez, CA

Active since June 28, 2019PECOS Enrolled
20001 S RANCHO WAY, RANCHO DOMINGUEZ, CA 90220(310) 225-3221(310) 698-7040 Get Directions Write a Review

NPPES record last updated: October 22, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rasam Hajiannasab Md NPPES

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

RASAM HAJIANNASAB MD (NPI 1710549878) is an individual anatomic pathology & clinical pathology provider in Rancho Dominguez, California, licensed in California (A193348) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710549878
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameRASAM HAJIANNASABCredential: MD
Location Address20001 S RANCHO WAYRancho Dominguez, CA 90220-6318
Mailing Address12902 Usf Magnolia DrTampa, FL 33612-9416 · (813) 745-4673
Phone(310) 225-3221
Fax(310) 698-7040
Sole ProprietorNo
Enumeration DateJune 28, 2019
Last NPPES UpdateOctober 22, 2024
NPPES CertifiedOctober 22, 2024
✔ NPI 1710549878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in CA · A193348
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
20001 S RANCHO WAY, Rancho Dominguez, CA 90220
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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)

Rasam Hajiannasab Md 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 Rasam Hajiannasab reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Affiliated Pathologists Medical Group, Inc.
Same address
Anatomic Pathology & Clinical Pathology
20001 S RANCHO WAY
Rancho Dominguez, CA 90220
  • Reassigned Medicare billing, California enrollment
  • 62 clinicians in this Medicare group
NPI 1730119553 (310) 225-3221

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 7

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
137 services79 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
114 services24 patients
Pathology examination of tissue using a microscope, moderately high complexity 88307
A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.
59 services33 patients
Pathology examination of tissue using a microscope, moderately low complexity 88304
A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.
57 services50 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
42 services31 patients
Preparation of tissue for examination by removing any calcium present 88311
This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.
39 services32 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90220 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 5

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

MIRIAM A VELAZQUEZ DO
Pathology (Anatomic Pathology & Clinical Pathology)
20001 S RANCHO WAY
RANCHO DOMINGUEZ, CA 90220
Los Angeles County (310) 225-3221
DANIEL REAL MD
Pathology (Anatomic Pathology & Clinical Pathology)
20001 S RANCHO WAY
RANCHO DOMINGUEZ, CA 90220
Los Angeles County (310) 225-3244
DR. STACY J ARNOLD M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
20001 S RANCHO WAY
RANCHO DOMINGUEZ, CA 90220
Los Angeles County (310) 225-3221
ALESSANDRO DE VITO M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
20001 S RANCHO WAY
RANCHO DOMINGUEZ, CA 90220
Los Angeles County (310) 225-3244
AFFILIATED PATHOLOGISTS MEDICAL GROUP, INC.
Pathology (Anatomic Pathology & Clinical Pathology)
20001 S RANCHO WAY
RANCHO DOMINGUEZ, CA 90220
Los Angeles County (310) 225-3221

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 Rasam Hajiannasab's NPI number?

The NPI number for Rasam Hajiannasab is 1710549878. It was assigned to this individual provider in the NPPES registry on June 28, 2019.

Where is Rasam Hajiannasab located?

Rasam Hajiannasab practices at 20001 S Rancho Way, Rancho Dominguez, CA 90220. The listed phone number is (310) 225-3221.

What is Rasam Hajiannasab's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Rasam Hajiannasab enrolled in Medicare?

Yes. Rasam Hajiannasab is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rasam Hajiannasab's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rasam Hajiannasab reassigns Medicare benefits to Affiliated Pathologists Medical Group, Inc. (Rancho Dominguez, 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 Rasam Hajiannasab'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 Rasam Hajiannasab was last updated on October 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.