HASSAN NAYER MD
NPI 1881695666
Pathology - Anatomic Pathology & Clinical Pathology in Falls Church, VA

Q: What is Hassan Nayer's NPI number?

The NPI number for Hassan Nayer is 1881695666. It was assigned to this individual provider in the NPPES registry on August 3, 2005.

Q: What is Hassan Nayer's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Hassan Nayer was last updated on January 24, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since August 03, 2005PECOS EnrolledAccepts Medicare Assignment

81.28/100

CMS Quality Rating

3300 GALLOWS RD, FALLS CHURCH, VA 22042(703) 776-3441 Get Directions Write a Review

NPPES record last updated: January 24, 2009. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Hassan Nayer Md NPPES

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

HASSAN NAYER MD (NPI 1881695666) is an individual anatomic pathology & clinical pathology provider in Falls Church, Virginia, licensed in Virginia (0101236717) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1881695666

Entity TypeIndividualMale

Primary Taxonomy207ZP0102X

Provider Legal NameHASSAN NAYERCredential: MD

Location Address3300 GALLOWS RDFalls Church, VA 22042-3307

Mailing Address11150 Fairfax Blvd, Suite 501Fairfax, VA 22030 · (703) 691-2516 · Fax (703) 691-3526

Phone(703) 776-3441

Sole ProprietorNo

Medical School CMSOtherGraduated 1990

Enumeration DateAugust 3, 2005

Last NPPES UpdateJanuary 24, 2009

✔ NPI 1881695666 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 VA · 0101236717

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.

3300 GALLOWS RD, Falls Church, VA 22042

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Other Identifiers 4

Medicare ID-Type Unspecified016824F82

Medicare PIN1053311357

Medicare UPINI28822VA

Medicaid016824F82VA

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

Hassan Nayer 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 ID6103867510

PECOS Enrollment IDI20050516000989, I20140508001265

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 20

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.

393 services94 patients

Antibody evaluation, each additional single antibody stain procedure 88350

An antibody evaluation involves testing a sample of your body fluid (like blood) to identify specific antibodies. Each additional single antibody stain procedure is a separate test for another specific antibody. This helps in diagnosing various health conditions by understanding your body's immune response.

215 services27 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.

210 services127 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.

167 services67 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.

146 services103 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.

95 services90 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.

70 services35 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.

52 services51 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.

49 services48 patients

Pathology cytologic examination of specimen during surgery, initial site 88333

A pathology cytologic examination during surgery involves taking a small sample of cells from the initial site of concern. This sample is then examined under a microscope by a pathologist to check for any abnormal or disease-causing cells. This helps guide the ongoing surgical procedure.

35 services26 patients

Pathology cytologic examination of specimen during surgery, each additional site 88334

A Pathology Cytologic Examination is a test performed during surgery to examine cells from an additional site in your body. This helps identify any abnormal or diseased cells. It's an important tool in diagnosing and managing various conditions.

31 services21 patients

Antibody evaluation, initial single antibody stain procedure 88346

An antibody evaluation, initial single antibody stain procedure is a laboratory test. It's designed to identify specific proteins, or antibodies, in your body. This can help diagnose certain conditions or monitor your immune system's response to treatments. The procedure involves staining a single type of antibody for detection.

28 services27 patients

Electron microscopy for diagnosis 88348

Electron microscopy is a diagnostic tool providing detailed images of tiny structures within the body, much smaller than those visible with regular microscopes. It aids in identifying diseases at a cellular level, enhancing accuracy of diagnosis.

24 services24 patients

Flow cytometry technique for dna or cell analysis, 9 to 15 markers 88188

Flow cytometry is a technique used to measure physical and chemical characteristics of cells or particles. It can analyze multiple markers (9 to 15) on a cell, helping to identify its type and function. This process can also examine DNA within cells for any abnormalities.

23 services19 patients

Protein measurement, serum 84165

A serum protein measurement is a blood test that determines the levels of proteins in your blood. It is used to evaluate your overall health, and diagnose nutritional problems, kidney disease, liver disease, or immune disorders.

22 services21 patients

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

21 services21 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

19 services12 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.

17 services17 patients

Blood smear interpretation by physician with written report 85060

Blood smear interpretation is a lab test where your doctor examines a sample of your blood under a microscope. They look for abnormalities in your blood cells which can help diagnose various conditions. You'll receive a written report of the findings.

16 services16 patients

Immunologic analysis technique on serum (immunofixation) 86334

Immunofixation is a lab test that helps identify proteins called immunoglobulins in your blood serum. These proteins are part of your immune system. Changes in their levels can indicate certain diseases. The test is simple and only requires a blood sample.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Inova Alexandria Hospital

Acute Care Hospitals · Alexandria, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490040

Location4320 Seminary RdAlexandria, VA 22304 · Alexandria City County

Emergency services Birthing friendly

Inova Loudoun Hospital

Acute Care Hospitals · Leesburg, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490043

Location44045 Riverside ParkwayLeesburg, VA 20176 · Loudoun County

Emergency services Birthing friendly

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490063

Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County

Emergency services Birthing friendly

Inova Fair Oaks Hospital

Acute Care Hospitals · Fairfax, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number490101

Location3600 Joseph Siewick DriveFairfax, VA 22033 · Fairfax County

Birthing friendly

Inova Mount Vernon Hospital

Acute Care Hospitals · Alexandria, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490122

Location2501 Parkers LaneAlexandria, VA 22306 · Fairfax County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22042 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.

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.

81.28/100

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

Scored as part of a group practice

Quality

70.77

Promoting Interoperability

100

Improvement Activities

Cost

66.84

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.

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