2026 NPPES data Allergy & Immunology Physician NPI 1558715359
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Seemal Awan

Allergy & Immunology Physician in Washington, District of Columbia.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,412 in Allergy & Immunology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
245
Medicare Part D claims · 93 beneficiaries · Allergy & Immunology Physician avg: 788
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

Seemal Awan filed 245 Medicare Part D claims in 2024 as an Allergy & Immunology Physician in Washington, District of Columbia, prescribing 84% generic.

245
Part D claims, 2024
84%
generic prescribing
Likely
board-certified (heuristic)
≥48th
pct by Part D claim volume (lower-bound band)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about Seemal Awan

Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1558715359), first enumerated 04/18/2016.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 245 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1558715359 · Allergy & Immunology Physician

NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1558715359
  • ENUM-MID 2016
  • TAX-NARROW 3,412
  • RX-LIGHT 245
  • BOOK-THIN 20 in District of Columbia
  • PHOTO-ENUM Omar Waqar · 2016

Seemal Awan's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2024, across all CMS prescribers nationally

245 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands

0–200: 679,947 prescribers (48%). Below this entry. 200–400: 188,835 prescribers (13%). This entry sits in this band. 400–600: 95,866 prescribers (7%). Above this entry. 600–800: 60,107 prescribers (4%). Above this entry. 800–1,000: 43,043 prescribers (3%). Above this entry. 1,000–1,200: 33,612 prescribers (2%). Above this entry. 1,200–1,400: 27,889 prescribers (2%). Above this entry. 1,400–1,600: 23,183 prescribers (2%). Above this entry. 1,600–1,800: 19,917 prescribers (1%). Above this entry. 1,800–2,000: 17,585 prescribers (1%). Above this entry. 2K+: 226,899 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.

Source CMS Medicare Part D Prescriber Public Use File · 2024

Board certification likely (heuristic, not verified)

Seemal Awan practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Seemal Awan?

Quality data not reported

NPI registry status

Active

Issued 04/18/2016

NPI 1558715359

Primary specialty

Allergy & Immunology Physician

Niche

3,412 US NPIs in this specialty

Medicare Part D claims

245 69% vs specialty avg

2024 prescription claims

Specialty avg: 788

Specialty distribution in District of Columbia

How Allergy & Immunology Physician compares to other specialties among District of Columbia providers

District of Columbia providers
Home Health Aide20.3%Personal Care Attendant12%Case Manager/Care Coordinator7.1%Student in an Organized Heal…6.4%Clinical Social Worker4%Internal Medicine Physician2%Allergy & Immunology Physici…0%
Largest specialties in District of Columbia (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Allergy & Immunology Physician. Verify directly:

How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

2150 PENNSYLVANIA AVE NW
Washington, DC 20037

Provider Details

NPI 1558715359
Specialty Allergy & Immunology Physician
Gender Female
NPI Issued 04/18/2016

Hospital and facility affiliations

Facilities where Seemal Awan bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Medical Practices OF Antietam, LLC
Hagerstown, MD

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

Seemal Awan - brand share 16.0%
Allergy & Immunology Physician average

16% brand-name claims vs 84% generic, on 245 2024 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

245
Total Claims
$22K
Total Drug Cost
93
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
465.433
Total Day Supply
13,390
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$14K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
69.3 years
Avg HCC Risk Score
1.02
Gender Split
70% female / 30% male
Age Distribution
<65: 13, 65-74: 59, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Seemal Awan prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Azelastine Hcl
80
Fluticasone Propionate
42
Levocetirizine Dihydrochloride
16
Albuterol Sulfate Hfa
Albuterol Sulfate
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Allergy & Immunology Physician Overview

How Seemal Awan fits within the Allergy & Immunology Physician landscape nationally.

3,412
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
788
Avg Claims per Provider

Seemal Awan's 245 claims are below the specialty average of 788.

Nationwide Allergy & Immunology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Awan, both outside District of Columbia so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2016)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Allergy & Immunology Physician Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Awan.

One of 20 Allergy & Immunology Physician providers enrolled in District of Columbia, 5 are shown here.

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Seemal Awan's specialty?
Seemal Awan specializes in Allergy & Immunology Physician and practices in Washington, District of Columbia.
How much does Seemal Awan prescribe under Medicare Part D?
In 2024, Seemal Awan wrote 245 Medicare Part D claims totaling $22K in drug costs for 93 beneficiaries.
Where is Seemal Awan located?
Seemal Awan is located at 2150 PENNSYLVANIA AVE NW, Washington, DC, 20037. Phone: (202) 741-3000.
What is Seemal Awan's NPI number?
Seemal Awan's National Provider Identifier (NPI) is 1558715359, issued on 04/18/2016.
Does Seemal Awan prescribe more brand-name or generic drugs?
Seemal Awan's prescribing is 16% brand-name and 84% generic drugs by claim count, with $14K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,412 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 788 Medicare Part D claims per year.
What drugs does Seemal Awan prescribe most often?
Based on 2024 Medicare Part D data, Seemal Awan's most frequently prescribed drugs include Azelastine Hcl, Fluticasone Propionate, Levocetirizine Dihydrochloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Seemal Awan accept Medicare?
Seemal Awan appears in CMS Medicare data with 245 Part D claims and 93 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Seemal Awan's credentials?
Seemal Awan's NPI is 1558715359. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.