DR. ALI ASIF KHAN MD, MPH
NPI 1801320957
Internal Medicine - Gastroenterology in Washington, DC

Q: What is Ali Khan's NPI number?

The NPI number for Ali Khan is 1801320957. It was assigned to this individual provider in the NPPES registry on April 15, 2017.

Q: What is Ali Khan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Ali Khan was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 15, 2017PECOS EnrolledAccepts Medicare Assignment

80.82/100

CMS Quality Rating

2150 PENNSYLVANIA AVE NW, WASHINGTON, DC 20037(202) 741-3000 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 1, 2026, Jun 6, 2023, Aug 20, 2017 and 1 more (4 updates tracked since 2017).

On this page

About Dr. Ali Asif Khan Md, Mph NPPES

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

DR. ALI ASIF KHAN MD, MPH (NPI 1801320957) is an individual gastroenterology provider in Washington, District Of Columbia, licensed in Virginia (0101278754) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Novant Health Uva Health System Culpeper Med Cente, and maintains a secondary practice location in Fairfax.

NPPES Registry Identity

NPI1801320957

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. ALI ASIF KHANCredential: MD, MPH

Location Address2150 PENNSYLVANIA AVE NWWashington, DC 20037-3201

Mailing Address11862 Boscobel CtHerndon, VA 20170-2341 · (703) 989-2377

Phone(202) 741-3000

Sole ProprietorYes

Medical School CMSGeorge Washington University School Of MedicineGraduated 2017

Enumeration DateApril 15, 2017

Last NPPES UpdateSeptember 1, 20264 updates tracked since enumeration

NPPES CertifiedSeptember 1, 2026

✔ NPI 1801320957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in VA · 0101278754

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 0101278754 (VA)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2150 PENNSYLVANIA AVE NW, Washington, DC 20037

Open in Google Maps ↗

Secondary Practice Location 1

Location 13028 Javier Rd Ste 300Fairfax, VA 22031 · Phone (703) 698-8960 · Fax (703) 828-0961

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ali Asif Khan Md, Mph 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 ID7416229463

PECOS Enrollment IDI20230724000949, I20240108005035

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 Reassignments

Medicare enrollment records show Ali Khan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Inova Health Care Services

10 mi

Internal Medicine

3300 GALLOWS RD, PHYSICIAN SERVICES
Falls Church, VA 22042

Reassigned Medicare billing, District of Columbia and Virginia enrollments
Also billed through NPI 1588717755 (Virginia)
2,618 clinicians in this Medicare group

NPI 1952320061 (703) 321-2627

Gastroenterology Associates Of Northern Virginia, LLC

18 mi

Gastroenterology

3700 JOSEPH SIEWICK DR., SUITE 308
Fairfax, VA 22033

Reassigned Medicare billing, District of Columbia and Virginia enrollments
110 clinicians in this Medicare group

NPI 1205884368 (703) 716-8700

Fauquier Physician Practices LLC

43 mi

Internal Medicine

550 HOSPITAL DR
Warrenton, VA 20186

Reassigned Medicare billing, Virginia enrollment
111 clinicians in this Medicare group

NPI 1770916983 (540) 316-5940

Mary Washington Healthcare Providers LLC

47 mi

Hospitalist

1001 SAM PERRY BLVD
Fredericksburg, VA 22401

Reassigned Medicare billing, Virginia enrollment
323 clinicians in this Medicare group

NPI 1750826277 (540) 741-1821

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 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.

Injection, vedolizumab, intravenous, 1 mg J3380

Vedolizumab is a medication given via injection. It's used to treat certain bowel conditions (such as Crohn's disease, ulcerative colitis) by reducing inflammation. It works by blocking a certain protein that causes this inflammation.

5,100 services15 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

187 services151 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

127 services54 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

123 services56 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

120 services120 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

109 services105 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

89 services85 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

84 services81 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

84 services81 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

67 services67 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

49 services45 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

26 services25 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

25 services25 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

21 services20 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

17 services15 patients

Biopsy of large bowel using a flexible endoscope 45380

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Novant Health Uva Health System Culpeper Med Cente

Acute Care Hospitals · Culpeper, VA

1/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number490019

Location501 Sunset LaneCulpeper, VA 22701 · Culpeper County

Emergency services Birthing friendly

Fauquier Hospital

Acute Care Hospitals · Warrenton, VA

3/5 CMS rating

OwnershipProprietary

CMS Certification Number490023

Location500 Hospital DriveWarrenton, VA 20186 · Fauquier County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20037 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.

80.82/100

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

Scored as part of a group practice

Quality

61.63

Promoting Interoperability

100

Improvement Activities

Cost

74.45

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.

LEI DU LYNN M.D.

Internal Medicine

2150 PENNSYLVANIA AVE NW, SUITE 5-416
WASHINGTON, DC 20037

District of Columbia (202) 741-2574

DR. ELLEN CURTIN MURPHY MD

Obstetrics & Gynecology (Obstetrics)

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-2500

DR. CHRISTOPHER DAVID BADGER MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

DR. MONICA MARIA MANRIQUE CASTRILLON MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

DR. STEVEN JOSEPH RALSTON MD

Obstetrics & Gynecology (Maternal & Fetal Medicine)

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-2500

ROBERT STEVEN SIEGEL M.D.

Internal Medicine (Hematology & Oncology)

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3333

JAMES DAVID KATZ M.D.

Internal Medicine (Rheumatology)

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-2222

SYLVIA MENTEER GONSAHN-BOLLIE M.D.

Internal Medicine

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-2222

MISS HELMA A PARIKH NURSE PRACTITIONER

Nurse Practitioner (Adult Health)

2150 PENNSYLVANIA AVE NW, SUITE 4-411
WASHINGTON, DC 20037

District of Columbia (202) 741-2323

HIRSH SHAH MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

QURRATUL-AIN DAR MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

SILVI SPIROLLARI POMEROY DO

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

MEGAN ANN MURPHY FNP

Nurse Practitioner (Family)

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-2223

MS. IRENA CULIC MS, PA-C

Physician Assistant

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 747-2600

DR. KEVIN KOSHY MATHEW MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

LINDSEY NGUYEN VU MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

JONATHAN WAINBLAT MD

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

RACHEL GARN

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

ANDRIANA DOLIBA

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

DR. RAPHAELA ANDREA GAME DO

Student in an Organized Health Care Education/Training Program

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

District of Columbia (202) 741-3000

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 Ali Khan's NPI number?

The NPI number for Ali Khan is 1801320957. It was assigned to this individual provider in the NPPES registry on April 15, 2017.

Where is Ali Khan located?

Ali Khan practices at 2150 Pennsylvania Ave NW, Washington, DC 20037. The listed phone number is (202) 741-3000.

What is Ali Khan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Ali Khan enrolled in Medicare?

Yes. Ali Khan 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.

Which organizations bill Medicare for Ali Khan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ali Khan reassigns Medicare benefits to 4 organizations: Inova Health Care Services (Falls Church, VA), Gastroenterology Associates Of Northern Virginia, LLC (Fairfax, VA), Fauquier Physician Practices LLC (Warrenton, VA) and Mary Washington Healthcare Providers LLC (Fredericksburg, VA). Each 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 Ali Khan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Ali Khan affiliated with any hospitals?

According to CMS data, Ali Khan is affiliated with Novant Health Uva Health System Culpeper Med Cente and Fauquier Hospital.

When was this NPI record last updated?

The NPPES record for Ali Khan was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.