Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ARASH MOHTASHAMIAN M.D.
NPI 1912987215
Pathology - Anatomic Pathology & Clinical Pathology in Bethesda, MD

Q: What is Arash Mohtashamian's NPI number?

The NPI number for Arash Mohtashamian is 1912987215. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Q: What is Arash Mohtashamian's specialty?

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

Active since January 20, 2006PECOS Enrolled

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVENUE, BETHESDA, MD 20889(301) 295-6157 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Arash Mohtashamian M.d. NPPES

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

DR. ARASH MOHTASHAMIAN M.D. (NPI 1912987215) is an individual anatomic pathology & clinical pathology provider in Bethesda, Maryland, licensed in Indiana (01055317A) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and is a graduate of Medical College Of Wisconsin (2000).

NPPES Registry Identity

NPI1912987215

Entity TypeIndividualMale

Primary Taxonomy207ZP0102X

Provider Legal NameDR. ARASH MOHTASHAMIANCredential: M.D.

Location AddressNATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVENUEBethesda, MD 20889-0001

Mailing Address17704 Chipping CtOlney, MD 20832-1621 · (301) 570-8979

Phone(301) 295-6157

Sole ProprietorNo

Medical School CMSMedical College Of WisconsinGraduated 2000

Enumeration DateJanuary 20, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1912987215 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 IN · 01055317A

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.

NATIONAL NAVAL MEDICAL CENTER, Bethesda, MD 20889

Open in Google Maps ↗

Other Identifiers 1

Other01055317AID · Medical License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Arash Mohtashamian M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052703790

PECOS Enrollment IDI20240130003562

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.

Areas of Expertise CMS Part B claims 18

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.

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.

577 services80 patients

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.

334 services198 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.

169 services112 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.

111 services105 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.

91 services78 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

88 services54 patients

Microscopic genetic analysis of tumor, manual 88360

Microscopic genetic analysis of a tumor involves examining your tumor's genes under a microscope. This helps identify specific genetic changes in the tumor cells. This information can aid in diagnosing, predicting disease progression, and determining the most effective treatment options.

81 services35 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.

63 services58 patients

Flow cytometry technique for dna or cell analysis, 16 or more markers 88189

Flow cytometry is a method used to measure and analyze cells. It uses a beam of light to detect up to 16 or more markers on cells, helping to identify their type, function, or abnormalities. This technique aids in diagnosing various health conditions.

48 services45 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

46 services25 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

42 services38 patients

Bone marrow, smear interpretation 85097

Bone marrow smear interpretation is a procedure where a small sample of your bone marrow is taken and examined under a microscope. This helps doctors identify any abnormal cells or signs of diseases such as anemia, leukemia, or infections. It's a crucial step in diagnosing various blood disorders.

40 services37 patients

Pathology examination of specimen during surgery, first tissue block 88331

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

37 services23 patients

Evaluation of fine needle aspirate with interpretation and report 88173

This procedure involves using a thin needle to collect a small sample from an abnormal area or lump. The sample is then examined under a microscope to identify any potential issues. A report of the findings is provided for further analysis.

34 services26 patients

Pathology examination of tissue using a microscope, limited examination 88300

A pathology examination of tissue using a microscope is a procedure where a small sample of your tissue is observed under a microscope. This limited examination helps identify any abnormal cells or signs of disease, aiding in accurate diagnosis and treatment planning.

29 services27 patients

Microscopic genetic analysis of tissue, manual, initial procedure 88368

Microscopic genetic analysis of tissue is a test that examines your cells under a microscope. This helps to identify any genetic changes that could be causing health issues. It's the first step in a series of tests to pinpoint the root cause of your symptoms.

22 services22 patients

Microscopic genetic analysis of tissue, manual, each additional procedure 88369

Microscopic genetic analysis of tissue is a procedure where a small sample of your body tissue is examined under a microscope. This is done to study the genes in your cells. If more than one procedure is needed, each additional one involves repeating this process. It's a key part of diagnosing and managing many health conditions.

22 services22 patients

Examination of archival tissue for genetic analysis 88363

Examination of archival tissue for genetic analysis involves studying previously collected tissue samples. This process helps detect any genetic alterations that may be linked to certain diseases. It's a crucial step in understanding your health and planning appropriate treatments.

15 services15 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Renown Regional Medical Center

Acute Care Hospitals · Reno, NV

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number290001

Location1155 Mill StreetReno, NV 89502 · Washoe County

Emergency services Birthing friendly

Renown South Meadows Medical Center

Acute Care Hospitals · Reno, NV

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number290049

Location10101 Double R BlvdReno, NV 89521 · Washoe County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20889 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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. SARAH STOKES HATCH PA-C

Physician Assistant (Medical)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE.
BETHESDA, MD 20889

Montgomery County (301) 295-0196

MRS. ELIZABETH BOOTH MYHRE NURSE PRACTITIONER

Nurse Practitioner (Pediatrics)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-5600

DR. PAUL K HAN MD

Internal Medicine

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889

Montgomery County (301) 295-6230

DR. ARMANDO OLIVA M.D.

Psychiatry & Neurology (Neurology)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4770

DR. MICHELLE BOYMANN KRAVITZ M.D.

Pediatrics

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-5257

DR. VINCENT B. HO M.D.

Radiology (Diagnostic Radiology)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE.
BETHESDA, MD 20889

Montgomery County (301) 295-1898

DR. KATHLEEN SUSAN KENNY D.D.S.

Dentist (Prosthodontics)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE.
BETHESDA, MD 20889

Montgomery County (301) 319-4649

MS. LINDA ANN CONIGLIO CHT, OTR/L

Specialist

NATIONAL NAVAL MEDICAL CENTER, 8901WISCONSIN AVE.
BETHESDA, MD 20889

Montgomery County (301) 295-4866

DR. STANLEY LIPKOWITZ MD, PHD

Internal Medicine (Medical Oncology)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-6230

DR. JOSEPH ONOFRIO LOPREIATO MD

Pediatrics

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AV
BETHESDA, MD 20889

Montgomery County (301) 295-8136

ROBERT LINVILLE BUMGARNER M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889

Montgomery County (301) 295-5800

DR. JAY RANDALL MONTGOMERY M.D.

Allergy & Immunology

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4510

RUSSELL BRYANT CARR M.D.

Psychiatry & Neurology (Psychiatry)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-0500

RICHARD RICCIARDI MS NP

Nurse Practitioner (Family)

NATIONAL NAVAL MEDICAL CENTER
BETHESDA, MD 20889

Montgomery County (301) 461-7109

DR. MICHAEL LOUIS DEVAN MD

Pathology (Anatomic Pathology & Clinical Pathology)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4611

MOHAMED K.M. SHAKIR

Internal Medicine (Endocrinology, Diabetes & Metabolism)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-5165

DR. MARK KOBELJA M.D.

Anesthesiology

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4455

DR. MICHAEL RUDMANN D.M.D.

Dentist (General Practice)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVE.
BETHESDA, MD 20889

Montgomery County (301) 295-0145

DR. MICHAEL DOUGLAS THOMAS M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889

Montgomery County (301) 295-0061

MS. RUTH ERCILIA GOLDBERG MSW, ACSW, LCSW

Social Worker (Clinical)

NATIONAL NAVAL MEDICAL CENTER, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889

Montgomery County (301) 319-8314

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 Arash Mohtashamian's NPI number?

The NPI number for Arash Mohtashamian is 1912987215. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Where is Arash Mohtashamian located?

Arash Mohtashamian practices at National Naval Medical Center 8901 Wisconsin Avenue, Bethesda, MD 20889. The listed phone number is (301) 295-6157.

What is Arash Mohtashamian's specialty?

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

Is Arash Mohtashamian enrolled in Medicare?

Yes. Arash Mohtashamian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Arash Mohtashamian affiliated with any hospitals?

According to CMS data, Arash Mohtashamian is affiliated with Renown Regional Medical Center and Renown South Meadows Medical Center.

When was this NPI record last updated?

The NPPES record for Arash Mohtashamian was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.