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

HAI WANG MD
NPI 1285046920
Pathology - Cytopathology in Fairfax, VA

Active since May 29, 2014PECOS Enrolled
97.05/100
CMS Quality Rating
3600 JOSEPH SIEWICK DR, FAIRFAX, VA 22033(703) 391-3600 Get Directions Write a Review

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

Record update history: Jul 13, 2026, May 29, 2020, Jun 25, 2018 (3 updates tracked since 2018).

About Hai Wang Md NPPES

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

HAI WANG MD (NPI 1285046920) is an individual cytopathology provider in Fairfax, Virginia, licensed in Virginia (0101281911) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of Other (1997).

NPPES Registry Identity

NPI1285046920
Entity TypeIndividualMale
Primary Taxonomy207ZC0500X
Provider Legal NameHAI WANGCredential: MD
Location Address3600 JOSEPH SIEWICK DRFairfax, VA 22033-1709
Mailing AddressPo Box 37504Baltimore, MD 21297-3504 · (571) 472-6253
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateMay 29, 2014
Last NPPES UpdateJuly 13, 20263 updates tracked since enumeration
NPPES CertifiedJuly 13, 2026
NPI 1285046920 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPathology · CytopathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZC0500X
License Licensed in VA · 0101281911
Definition
A cytopathologist is an anatomic pathologist trained in the diagnosis of human disease by means of the study of cells obtained from body secretions and fluids, by scraping, washing, or sponging the surface of a lesion, or by the aspiration of a tumor mass or body organ with a fine needle. A major aspect of a cytopathologist's practice is the interpretation of Papanicolaou-stained smears of cells from the female reproductive systems, the Pap test. However, the cytopathologist's expertise is applied to the diagnosis of cells from all systems and areas of the body. He/she is a consultant to all medical specialists.
3600 JOSEPH SIEWICK DR, Fairfax, VA 22033

Accepted Insurance

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

Hai Wang 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 ID8527285063
PECOS Enrollment IDI20240729001545, I20240801004345
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 16

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.
1,504 services623 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 services187 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.
202 services64 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.
124 services48 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.
120 services60 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.
80 services26 patients

Hospital Affiliations CMS Care Compare 4

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22033 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.

97.05/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality94.11
Improvement Activities40

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.

Nurse Anesthetist, Certified Registered
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Registered Nurse
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Nurse Anesthetist, Certified Registered
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Physician Assistant
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Physical Therapist
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Hospitalist
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Pathology (Anatomic Pathology & Clinical Pathology)
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Registered Nurse (Registered Nurse First Assistant)
3600 JOSEPH SIEWICK DR
FAIRFAX, VA 22033

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 Hai Wang's NPI number?

The NPI number for Hai Wang is 1285046920. It was assigned to this individual provider in the NPPES registry on May 29, 2014.

Where is Hai Wang located?

Hai Wang practices at 3600 Joseph Siewick Dr, Fairfax, VA 22033. The listed phone number is (703) 391-3600.

What is Hai Wang's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Cytopathology, with taxonomy code 207ZC0500X.

Is Hai Wang enrolled in Medicare?

Yes. Hai Wang 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.

What insurance does Hai Wang accept?

Health plans from CareSource list Hai Wang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Hai Wang affiliated with any hospitals?

According to CMS data, Hai Wang is affiliated with Inova Alexandria Hospital, Inova Loudoun Hospital, Inova Fairfax Hospital and Inova Fair Oaks Hospital.

When was this NPI record last updated?

The NPPES record for Hai Wang 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 33 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.