2026 NPPES data Allergy & Immunology Physician NPI 1437359650 M.D.
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NAYOUNG KIM, M.D.

Allergy & Immunology Physician in BETHESDA, Maryland. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
775
Medicare Part D claims · 168 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: NAYOUNG KIM, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in BETHESDA, Maryland with a Medicare Part D prescribing footprint of 775 claims across 168 beneficiaries — 44% brand-name prescribing .

What stands out: NAYOUNG KIM, M.D. filed 775 Medicare Part D claims in 2023 across BETHESDA, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

NAYOUNG KIM, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

NAYOUNG KIM, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/25/2007

NPI 1437359650

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

775 1% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Maryland

How Allergy & Immunology Physician compares to other specialties among Maryland providers

Maryland providers

Allergy & Immunology Physician share within Maryland

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Allergy & Immunology Physician ABMS/AOA estimate

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

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).

NAYOUNG KIM, M.D. is a Allergy & Immunology Physician provider practicing in BETHESDA, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1437359650. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NAYOUNG KIM, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 10 CENTER DR, BETHESDA, MD, 20892, with a listed phone of (301) 594-5504. NPI 1437359650 was issued on 07/25/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KIM most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 775 prescription claims written by this provider, covering 168 Medicare beneficiaries and totaling roughly $391K in drug spend, split 44% brand-name and 56% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

10 CENTER DR
BETHESDA, MD 20892

Provider Details

NPI 1437359650
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Female
NPI Issued 07/25/2007

Brand vs generic prescribing mix · Above average

NAYOUNG KIM, M.D. — brand share 44.0%
Specialty average (est.)

44% brand-name claims vs 56% generic, on 775 2023 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 2023.

775
Total Claims
$391K
Total Drug Cost
168
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,324
Total Day Supply
37,581
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$357K
Generic Drug Cost
$34K

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
1.10
Gender Split
66% female / 34% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Symbicort
Budesonide/Formoterol Fumarate
122
Azelastine Hcl
92
Spiriva Respimat
Tiotropium Bromide
71
Montelukast Sodium
69
Wixela Inhub
Fluticasone Propion/Salmeterol
68
Fluticasone Propionate
45
Ipratropium Bromide
39
Alvesco
Ciclesonide
31
Albuterol Sulfate Hfa
Albuterol Sulfate
29
Hydroxyzine Hcl
24

* 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 NAYOUNG KIM, M.D. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

NAYOUNG KIM, M.D.'s 775 claims are above the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Maryland

Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as KIM.

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

Frequently Asked Questions

What is NAYOUNG KIM, M.D.'s specialty?
NAYOUNG KIM, M.D. specializes in Allergy & Immunology Physician and practices in BETHESDA, Maryland. Credentials: M.D..
How much does NAYOUNG KIM, M.D. prescribe under Medicare Part D?
In 2023, NAYOUNG KIM, M.D. wrote 775 Medicare Part D claims totaling $391K in drug costs for 168 beneficiaries.
Where is NAYOUNG KIM, M.D. located?
NAYOUNG KIM, M.D. is located at 10 CENTER DR, BETHESDA, MD, 20892. Phone: (301) 594-5504.
What is NAYOUNG KIM, M.D.'s NPI number?
NAYOUNG KIM, M.D.'s National Provider Identifier (NPI) is 1437359650, issued on 07/25/2007.
Does NAYOUNG KIM, M.D. prescribe more brand-name or generic drugs?
NAYOUNG KIM, M.D.'s prescribing is 44% brand-name and 56% generic drugs by claim count, with $357K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does NAYOUNG KIM, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NAYOUNG KIM, M.D.'s most frequently prescribed drugs include Symbicort, Azelastine Hcl, Spiriva Respimat. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NAYOUNG KIM, M.D. accept Medicare?
NAYOUNG KIM, M.D. appears in CMS Medicare data with 775 Part D claims and 168 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NAYOUNG KIM, M.D.'s credentials?
NAYOUNG KIM, M.D.'s NPI is 1437359650 with credentials M.D.. 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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