MAHNAZ SHAHIDI-ASL MD
NPI 1801082201
Pathology - Anatomic Pathology & Clinical Pathology in Napa, CA

Q: What is Mahnaz Shahidi-asl's NPI number?

The NPI number for Mahnaz Shahidi-asl is 1801082201. It was assigned to this individual provider in the NPPES registry on September 19, 2007.

Q: What is Mahnaz Shahidi-asl's specialty?

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

Active since September 19, 2007PECOS EnrolledAccepts Medicare Assignment

70.99/100

CMS Quality Rating

1000 TRANCAS ST, NAPA, CA 94558(707) 252-4411 Get Directions Write a Review

NPPES record last updated: July 15, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mahnaz Shahidi-asl Md NPPES

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

MAHNAZ SHAHIDI-ASL MD (NPI 1801082201) is an individual anatomic pathology & clinical pathology provider in Napa, California, licensed in California (A93938) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1990).

NPPES Registry Identity

NPI1801082201

Entity TypeIndividualFemale

Primary Taxonomy207ZP0102X

Provider Legal NameMAHNAZ SHAHIDI-ASLCredential: MD

Location Address1000 TRANCAS STNapa, CA 94558-2906

Mailing Address5700 Southwyck BlvdToledo, OH 43614-1509 · (800) 288-8325

Phone(707) 252-4411

Sole ProprietorYes

Medical School CMSOtherGraduated 1990

Enumeration DateSeptember 19, 2007

Last NPPES UpdateJuly 15, 2021

NPPES CertifiedJuly 15, 2021

✔ NPI 1801082201 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 · A93938

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.

1000 TRANCAS ST, Napa, CA 94558

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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

Mahnaz Shahidi-asl Md 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 ID4587624010

PECOS Enrollment IDI20110405000782

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 17

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.

978 services518 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.

322 services77 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.

234 services117 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.

206 services166 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.

159 services121 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.

148 services55 patients

Special stained specimen slides to examine tissue, each multiplex procedure 88344

Special stained specimen slides are used to study tissue in detail. This multiplex procedure involves applying different dyes to the tissue sample on a slide to highlight specific elements. These colors help identify any abnormalities in the tissue, aiding in accurate diagnosis and treatment planning.

115 services29 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.

83 services74 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.

69 services66 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.

67 services62 patients

Microscopic genetic analysis of tissue, computer-assisted technology, initial procedure, each multiplex procedure 88374

This procedure involves analyzing tissue at a genetic level using a microscope and advanced computer technology. The initial process involves the collection and preparation of tissue samples. Each multiplex procedure refers to the simultaneous testing of multiple genetic markers to identify abnormalities.

42 services11 patients

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416

This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.

42 services42 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.

38 services35 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.

38 services37 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.

32 services25 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.

31 services29 patients

Pathology examination of tissue using a microscope, high complexity 88309

A high complexity pathology examination involves studying body tissue under a microscope to identify any abnormalities. This intricate process helps in diagnosing various conditions and deciding on the best treatment plan.

21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94558 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

$145.99 typical visit price

range $65.08 – $192.16

Typical copayment $36.49 (range $16.27 – $48.04)

Most-billed visit code 99204

Established Patient

$113.15 typical visit price

range $21.86 – $157.83

Typical copayment $28.28 (range $5.46 – $39.45)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

70.99/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

100

Improvement Activities

Cost

94.69

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.

ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC

General Acute Care Hospital

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

MICHAEL V. WAGNER MD

Obstetrics & Gynecology

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC

General Acute Care Hospital

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

ALYSSA MARIE CHIONGLO PHARMD, BCPS

Pharmacist

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 257-4048

VINEYARD PATHOLOGY ASSOCIATES INC

Pathology (Anatomic Pathology & Clinical Pathology)

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 257-4076

AMIR BEHZAD RAZAVI M.D.

Hospitalist

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 251-3518

M. ATCHISON CRNA INC, A PROFESSIONAL NURSING CORP.

Nurse Anesthetist, Certified Registered

1000 TRANCAS ST, QUEEN OF THE VALLEY HOSPITAL
NAPA, CA 94558

Napa County (707) 228-2901

LAWRENCE THOMPSON MD

Pathology (Anatomic Pathology & Clinical Pathology)

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

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 Mahnaz Shahidi-asl's NPI number?

The NPI number for Mahnaz Shahidi-asl is 1801082201. It was assigned to this individual provider in the NPPES registry on September 19, 2007.

Where is Mahnaz Shahidi-asl located?

Mahnaz Shahidi-asl practices at 1000 Trancas St, Napa, CA 94558. The listed phone number is (707) 252-4411.

What is Mahnaz Shahidi-asl's specialty?

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

Is Mahnaz Shahidi-asl enrolled in Medicare?

Yes. Mahnaz Shahidi-asl 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.

When was this NPI record last updated?

The NPPES record for Mahnaz Shahidi-asl was last updated on July 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.