Doctor profile · Federal record

Dr. Hidayat Khan, M.D.

Allergy Physician (CMS: Allergy/Immunology) · Frederick, MD

  • NPI 1386619583
  • Accepts Medicare
  • 59 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
801 Toll House Ave
Frederick, MD 217014564
(301) 694-4935
fax (301) 694-0389
Mailing address
4221 Buckskin Wood Dr
Ellicott City, MD 210421217

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
November 29, 2011
Year of graduation
1967 — 59 yrs since
Specialty taxonomy
207KA0200X — NUCC code
State license (1)
Maryland #D0023240

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386619583. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,622
Distinct HCPCS
6
Medicare allowed
$27,585
HCPCS Description Services Patients Avg allowed
95004 Test for allergy using allergenic extract 1,018 17 $4
95117 Professional service for multiple injections of allergen 264 22 $13
95115 Professional service for single injection of allergen 146 13 $11
99214 Established patient office or other outpatient visit, 30-39 minutes 110 57 $133
96160 Administration and interpretation of patient-focused health risk assessment 63 33 $3
99204 New patient office or other outpatient visit, 45-59 minutes 21 21 $169

In context: peer comparison

Among 1 peers in this city , average services per provider: 270. This provider delivers 6.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,661
Transactions
71
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
GENZYME CORPORATION 13 $335.74
AstraZeneca Pharmaceuticals LP 14 $265.22
GlaxoSmithKline, LLC. 12 $257.07
Takeda Pharmaceuticals U.S.A., Inc. 6 $156.09
CSL Behring 3 $102.13
Genentech USA, Inc. 4 $87.25
BioCryst US Sales Co., LLC 3 $76.80
Optinose US, Inc. 3 $71.93
Octapharma USA, Inc. 3 $67.63
Novartis Pharmaceuticals Corporation 3 $60.80
Regeneron Healthcare Solutions, Inc. 2 $58.66
Blueprint Medicines Corporation 2 $47.53
Amgen Inc. 1 $30.87
Grifols USA, LLC 1 $23.42
kaleo, Inc. 1 $19.70

By nature of payment

Food and Beverage
$1,661

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
259
Patients
90
Total drug cost
$75,942
Drug Type Claims Patients Total cost
Montelukast Sodium Generic 75 24 $1,242
Fluticasone Propionate Generic 36 13 $522
Desloratadine Generic 35 12 $3,772
Azelastine Hcl Generic 32 14 $1,202
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 23 0 $17,151
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 20 15 $663
Dupixent Syringe (Dupilumab) Brand 13 0 $47,576
Fluticasone-Salmeterol (Fluticasone Propion/Salmeterol) Brand 13 0 $3,753
Azithromycin Generic 12 12 $62

Frequently asked questions

Auto-generated from federal data
What is Dr. Hidayat Khan's medical specialty?
Dr. Hidayat Khan practices Allergy Physician in Frederick, MD.
Where does Dr. Hidayat Khan practice?
Dr. Hidayat Khan practices at 801 Toll House Ave, Frederick, MD 217014564. Office phone: 3016944935.
What is Dr. Hidayat Khan's NPI?
Dr. Hidayat Khan's National Provider Identifier (NPI) is 1386619583, issued by NPPES.
Does Dr. Hidayat Khan accept Medicare assignment?
Yes. Dr. Hidayat Khan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hidayat Khan commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for multiple injections of allergen (HCPCS 95117); Professional service for single injection of allergen (HCPCS 95115). Source: CMS Medicare Physician & Other Practitioners file.