2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1457385601 M.D.
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MONIKA KORFF, M.D.

Allergy & Immunology (Internal Medicine) Physician in BALTIMORE, 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
223
Medicare Part D claims · 54 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$877.79
24 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MONIKA KORFF, M.D. is a Allergy & Immunology (Internal Medicine) Physician ([object Object]) practicing in BALTIMORE, Maryland with a Medicare Part D prescribing footprint of 223 claims across 54 beneficiaries — 42% brand-name prescribing . Industry payments of $877.79 across 24 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MONIKA KORFF, M.D. filed 223 Medicare Part D claims in 2023 across BALTIMORE, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MONIKA KORFF, M.D. 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).

MONIKA KORFF, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/11/2006

NPI 1457385601

Primary specialty

Allergy & Immunology (Internal Medicine) Physician

Niche

520 US NPIs in this specialty

Medicare Part D claims

223 72% vs specialty avg

2023 prescription claims

Specialty avg: 798

Specialty distribution in Maryland

How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Maryland providers

Maryland providers

Allergy & Immunology (Internal Medicine) Physician share within Maryland

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Allergy & Immunology (Internal Medicine) 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).

MONIKA KORFF, M.D. is a Allergy & Immunology (Internal Medicine) Physician provider practicing in BALTIMORE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1457385601. 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.

MONIKA KORFF, M.D. appears in the CMS NPPES registry as a Allergy & Immunology (Internal Medicine) Physician provider holding M.D. credentials at 5501 HOPKINS BAYVIEW CIR, BALTIMORE, MD, 21224, with a listed phone of (410) 550-2172. NPI 1457385601 was issued on 07/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KORFF 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 223 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $184K in drug spend, split 42% brand-name and 58% 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 (Internal Medicine) Physician is a narrow specialty nationwide, with 520 enrolled providers across 48 states and an average of 798 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

5501 HOPKINS BAYVIEW CIR
BALTIMORE, MD 21224

Provider Details

NPI 1457385601
Specialty Allergy & Immunology (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 07/11/2006

Hospital and facility affiliations

Facilities where MONIKA KORFF, M.D. 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.

ALLERGY AND ASTHMA CENTER OF CENTRAL MARYLAND, PA
COLUMBIA, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MONIKA KORFF, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$878

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

MONIKA KORFF, M.D. — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 223 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.

223
Total Claims
$184K
Total Drug Cost
54
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
381
Total Day Supply
11,024
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$179K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
0.85
Gender Split
76% female / 24% 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
Montelukast Sodium
38
Levocetirizine Dihydrochloride
35
Symbicort
Budesonide/Formoterol Fumarate
17
Azelastine Hcl
15
Alvesco
Ciclesonide
13
Dupixent Syringe
Dupilumab
11
Nucala
Mepolizumab
11

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

Allergy & Immunology (Internal Medicine) Physician Overview

How MONIKA KORFF, M.D. fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.

520
Allergy & Immunology (Internal Medicine) Physician Providers in US
48
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider

MONIKA KORFF, M.D.'s 223 claims are below the specialty average of 798.

Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Maryland

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

Compare Allergy & Immunology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MONIKA KORFF, M.D.'s specialty?
MONIKA KORFF, M.D. specializes in Allergy & Immunology (Internal Medicine) Physician and practices in BALTIMORE, Maryland. Credentials: M.D..
How much does MONIKA KORFF, M.D. prescribe under Medicare Part D?
In 2023, MONIKA KORFF, M.D. wrote 223 Medicare Part D claims totaling $184K in drug costs for 54 beneficiaries.
Where is MONIKA KORFF, M.D. located?
MONIKA KORFF, M.D. is located at 5501 HOPKINS BAYVIEW CIR, BALTIMORE, MD, 21224. Phone: (410) 550-2172.
What is MONIKA KORFF, M.D.'s NPI number?
MONIKA KORFF, M.D.'s National Provider Identifier (NPI) is 1457385601, issued on 07/11/2006.
Does MONIKA KORFF, M.D. prescribe more brand-name or generic drugs?
MONIKA KORFF, M.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $179K in brand drug costs.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US?
There are 520 Allergy & Immunology (Internal Medicine) Physician providers across 48 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
What drugs does MONIKA KORFF, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MONIKA KORFF, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Levocetirizine Dihydrochloride, Symbicort. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MONIKA KORFF, M.D. accept Medicare?
MONIKA KORFF, M.D. appears in CMS Medicare data with 223 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MONIKA KORFF, M.D.'s credentials?
MONIKA KORFF, M.D.'s NPI is 1457385601 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