DR. HIDAYAT KHAN M.D.
NPI 1386619583
Allergy & Immunology - Allergy in Frederick, MD

Q: What is Hidayat Khan's NPI number?

The NPI number for Hidayat Khan is 1386619583. It was assigned to this individual provider in the NPPES registry on February 21, 2006.

Q: What is Hidayat Khan's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Q: When was this NPI record last updated?

The NPPES record for Hidayat Khan was last updated on November 29, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 February 21, 2006PECOS EnrolledAccepts Medicare Assignment

801 TOLL HOUSE AVE, FREDERICK, MD 21701(301) 694-4935(301) 694-0389 Get Directions Write a Review

NPPES record last updated: November 29, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Hidayat Khan M.d. NPPES

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

DR. HIDAYAT KHAN M.D. (NPI 1386619583) is an individual allergy provider in Frederick, Maryland, licensed in Maryland (D0023240) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1967).

NPPES Registry Identity

NPI1386619583

Entity TypeIndividualMale

Primary Taxonomy207KA0200X

Provider Legal NameDR. HIDAYAT KHANCredential: M.D.

Location Address801 TOLL HOUSE AVEFrederick, MD 21701-4564

Mailing Address4221 Buckskin Wood DrEllicott City, MD 21042-1217 · (301) 694-4935 · Fax (301) 694-0389

Phone(301) 694-4935

Fax(301) 694-0389

Sole ProprietorYes

Medical School CMSOtherGraduated 1967

Enumeration DateFebruary 21, 2006

Last NPPES UpdateNovember 29, 2011

✔ NPI 1386619583 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians

Taxonomy Code207KA0200X

License✔ Licensed in MD · D0023240

Definition

A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

801 TOLL HOUSE AVE, Frederick, MD 21701

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Other Identifiers 3

Medicare ID-Type UnspecifiedK347MD

OtherK347MD · Bluecross Blueshield Of M

Medicare UPIND72201MD

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. Hidayat Khan M.d. 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 ID3375643679

PECOS Enrollment IDI20120417000326

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 Reassignment

Medicare enrollment records show Hidayat Khan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Asthma & Allergy Center LLC

25 mi

Allergy & Immunology

14995 SHADY GROVE RD STE 100
Rockville, MD 20850

Reassigned Medicare billing, Maryland enrollment
19 clinicians in this Medicare group

NPI 1912089335 (410) 772-8000

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 9

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.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

1,135 services22 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

212 services43 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.

117 services83 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

96 services12 patients

Professional service for single injection of allergen 95115

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

94 services22 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.

78 services11 patients

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.

GAFFAR A SYED MD

Internal Medicine

801 TOLL HOUSE AVE, H4
FREDERICK, MD 21701

Frederick County (301) 698-9444

MOHAMMED M MOHIUDDIN MD

Urology

801 TOLL HOUSE AVE, BLDG B2
FREDERICK, MD 21701

Frederick County (301) 694-8080

MR. KARL BRENDON KRANTZ PT

Physical Therapist

801 TOLL HOUSE AVE, STE H3
FREDERICK, MD 21701

Frederick County (240) 575-9260

IRFAN HASSEN M.D.

Family Medicine

801 TOLL HOUSE AVE, SUITE D2
FREDERICK, MD 21701

Frederick County (301) 698-2604

SERENITY MEDICAL & WELLNESS CENTER OF FREDERICK

Internal Medicine

801 TOLL HOUSE AVE, SUITE F1
FREDERICK, MD 21701

Frederick County (240) 561-5163

DR. ATUL P PUROHIT DDS

Dentist (General Practice)

801 TOLL HOUSE AVE, FREDERICK MEDICAL CENTER, BLDG I
FREDERICK, MD 21701

Frederick County (301) 662-0131

MICHAEL GAROFANO, PH.D., LLC

Clinical Neuropsychologist

801 TOLL HOUSE AVE, SUITE A-3
FREDERICK, MD 21701

Frederick County (301) 663-1411

PRIVIA MEDICAL GROUP, LLC

Family Medicine

801 TOLL HOUSE AVE
FREDERICK, MD 21701

Frederick County (240) 772-5775

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 Hidayat Khan's NPI number?

The NPI number for Hidayat Khan is 1386619583. It was assigned to this individual provider in the NPPES registry on February 21, 2006.

Where is Hidayat Khan located?

Hidayat Khan practices at 801 Toll House Ave, Frederick, MD 21701. The listed phone number is (301) 694-4935.

What is Hidayat Khan's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Hidayat Khan enrolled in Medicare?

Yes. Hidayat 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 organization bills Medicare for Hidayat Khan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hidayat Khan reassigns Medicare benefits to Asthma & Allergy Center LLC (Rockville, MD). The 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 Hidayat Khan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Hidayat Khan was last updated on November 29, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.