MR. ASHUTOSH B DIWAN MD
NPI 1144214958
Family Medicine in Warrenton, VA

Q: What is Ashutosh Diwan's NPI number?

The NPI number for Ashutosh Diwan is 1144214958. It was assigned to this individual provider in the NPPES registry on September 7, 2005.

Q: What is Ashutosh Diwan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Ashutosh Diwan was last updated on November 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 September 07, 2005PECOS EnrolledAccepts Medicare Assignment

493 BLACKWELL RD, SUITE 202, WARRENTON, VA 20186(540) 347-4400(540) 341-4766 Get Directions Write a Review

NPPES record last updated: November 5, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 5, 2024, Aug 7, 2024, Aug 16, 2023 and 1 more (4 updates tracked since 2023).

On this page

About Mr. Ashutosh B Diwan Md NPPES

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

MR. ASHUTOSH B DIWAN MD (NPI 1144214958) is an individual family medicine provider in Warrenton, Virginia, licensed in Virginia (0101229792) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Fauquier Hospital, and maintains a secondary practice location in Dittmer.

NPPES Registry Identity

NPI1144214958

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameMR. ASHUTOSH B DIWANCredential: MD

Location Address493 BLACKWELL RD, SUITE 202Warrenton, VA 20186-2639

Mailing AddressPo Box 748613Atlanta, GA 30384-8613 · (434) 295-1000

Phone(540) 347-4400

Fax(540) 341-4766

Sole ProprietorNo

Medical School CMSEastern Virginia Medical SchoolGraduated 1998

Enumeration DateSeptember 7, 2005

Last NPPES UpdateNovember 5, 20244 updates tracked since enumeration

NPPES CertifiedNovember 5, 2024

✔ NPI 1144214958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in VA · 0101229792✔ Licensed in KS · 0429558

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedFamily Medicine · Addiction MedicineTaxonomy 207QA0401X · License 2023001690 (MO)

493 BLACKWELL RD, Warrenton, VA 20186

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Secondary Practice Location 1

Location 18350 State Route 30Dittmer, MO 63023-1909 · Phone (636) 707-2097

Other Identifiers 1

Medicaid100450570 DKS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Medica and more.Insurance ›

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

Mr. Ashutosh B Diwan 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 ID4688666878

PECOS Enrollment IDI20071023000284

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 Ashutosh Diwan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Piedmont Family Practice, Plc

Same address

Specialist

493 BLACKWELL RD, SUITE 202
Warrenton, VA 20186

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

NPI 1811107097 (540) 341-1704

Nmg Affiliate Practice I, LLC

0.2 mi

Obstetrics & Gynecology

480 FLETCHER DR, SUITE 3
Warrenton, VA 20186

Reassigned Medicare billing, Virginia enrollment
Medicare enrollment name: Uva Community Health Medical Group LLC
584 clinicians in this Medicare group

NPI 1750813812 (571) 261-3529

Mid America Pain Clinic LLC

910 mi

Pain Medicine

7100 COLLEGE BLVD
Overland Park, KS 66210

Reassigned Medicare billing, Kansas enrollment
7 clinicians in this Medicare group

NPI 1699362822 (913) 599-2440

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 29

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.

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.

891 services302 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

166 services107 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

131 services97 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

115 services100 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

100 services83 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

99 services77 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.

91 services86 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

90 services73 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

90 services65 patients

Injection, ceftriaxone sodium, per 250 mg J0696

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

68 services15 patients

Detection test by immunoassay with direct visual observation for influenza virus 87804

This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.

59 services31 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

54 services37 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

51 services51 patients

Testing for presence of drug, read by direct observation 80305

Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.

44 services28 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

33 services32 patients

Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 87426

An immunoassay test for severe acute respiratory syndrome coronavirus is a diagnostic tool. It uses your body's immune response to detect the presence of the virus. It involves taking a sample, usually from your nose or throat, which is then analyzed in a lab for signs of the virus.

32 services32 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

32 services32 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

31 services27 patients

Liver function blood test panel 80076

A liver function blood test panel helps check the health of your liver. It measures various proteins, liver enzymes, and bilirubin in your blood. If these levels are too high or too low, it could signal a liver problem. It's a simple, non-invasive test that involves drawing blood.

24 services24 patients

Prostate cancer screening; prostate specific antigen test (psa) G0103

Prostate cancer screening involves a simple blood test known as the Prostate Specific Antigen (PSA) test. This test measures the level of PSA in your blood. Higher than normal levels can be an early indication of prostate issues, including cancer. It's a key tool in early detection.

19 services19 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.

18 services18 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

16 services16 patients

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

Albuterol is a medication used to treat breathing problems. It is administered as an inhalation solution through a device called DME (Durable Medical Equipment). The solution is FDA-approved and non-compounded. Each unit dose contains 1 mg of the medicine.

16 services12 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test 85027

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

12 services11 patients

Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880

A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.

12 services12 patients

Inhalation treatment for airway obstruction or sputum production 94640

Inhalation treatment, also known as nebulizer therapy, helps clear airway obstructions and reduce sputum production. It involves breathing in medication through a device, turning it into a mist. This can open up the airways, making breathing easier and helping to cough out mucus.

12 services12 patients

Ipratropium bromide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per milligram J7644

Ipratropium bromide is a medication used to control symptoms of lung diseases like COPD. Administered through a device called DME (Durable Medical Equipment), it's inhaled directly into the lungs. It's FDA-approved and provided in unit-dose form per milligram.

12 services12 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

11 services11 patients

Administration of vaccine 90471

Administering a vaccine involves injecting a small, safe piece of a virus or bacteria into your body. This triggers your immune system to recognize and fight off the disease in the future. It's a vital tool in preventing serious illnesses and maintaining public health.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

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 20186 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

$86.88 typical visit price

range $56.19 – $170.30

Typical copayment $21.72 (range $14.04 – $42.57)

Most-billed visit code 99203

Established Patient

$99.13 typical visit price

range $18.07 – $138.91

Typical copayment $24.78 (range $4.51 – $34.72)

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.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

5 suppliers19 claims45 services$6.81 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

2 suppliers17 claims2,190 services$0.09 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers19 claims19 services$179.25 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

2 suppliers16 claims16 services$22.74 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

LYNN H SAMUEL MD

Pathology (Anatomic Pathology & Clinical Pathology)

493 BLACKWELL RD, SUITE 101A
WARRENTON, VA 20186

Fauquier County (540) 316-5604

THE FAUQUIER HOSPITAL INC

General Acute Care Hospital

493 BLACKWELL RD
WARRENTON, VA 20186

Fauquier County (540) 316-5012

MIND BODY CONNECTION, INC

Psychologist (Clinical)

493 BLACKWELL RD, SUITE 203
WARRENTON, VA 20186

Fauquier County (571) 364-3095

BRIDGET JOSEPH MD

Allergy & Immunology (Allergy)

493 BLACKWELL RD, STE 305
WARRENTON, VA 20186

Fauquier County (540) 428-1715

CHRISTOPHER M WARD MD

General Practice

493 BLACKWELL RD, STE 202
WARRENTON, VA 20186

Fauquier County (540) 347-4400

DIANA CHALMETA M.D.

Pediatrics

493 BLACKWELL RD, SUITE 201
WARRENTON, VA 20186

Fauquier County (540) 347-4200

FAUQUIER MEDICAL CENTER LLC

General Acute Care Hospital

493 BLACKWELL RD
WARRENTON, VA 20186

Fauquier County (540) 316-5012

DAVID C EVANS MD

Family Medicine

493 BLACKWELL RD, SUITE 202
WARRENTON, VA 20186

Fauquier County (540) 347-4400

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 Ashutosh Diwan's NPI number?

The NPI number for Ashutosh Diwan is 1144214958. It was assigned to this individual provider in the NPPES registry on September 7, 2005.

Where is Ashutosh Diwan located?

Ashutosh Diwan practices at 493 Blackwell Rd Suite 202, Warrenton, VA 20186. The listed phone number is (540) 347-4400.

What is Ashutosh Diwan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Ashutosh Diwan enrolled in Medicare?

Yes. Ashutosh Diwan 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 Ashutosh Diwan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ashutosh Diwan reassigns Medicare benefits to 3 organizations: Piedmont Family Practice, Plc (Warrenton, VA), Nmg Affiliate Practice I, LLC (Warrenton, VA) and Mid America Pain Clinic LLC (Overland Park, KS). 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 Ashutosh Diwan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ashutosh Diwan accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Medica and Oscar Health list Ashutosh Diwan 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 Ashutosh Diwan affiliated with any hospitals?

According to CMS data, Ashutosh Diwan is affiliated with Fauquier Hospital.

When was this NPI record last updated?

The NPPES record for Ashutosh Diwan was last updated on November 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.