2026 NPPES data Infectious Disease Physician NPI 1508886540 M.D.
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UDAY KUMAR, M.D.

Infectious Disease Physician in SOMERSET, New Jersey. 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
258
Medicare Part D claims · 64 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$352.33
10 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

UDAY KUMAR, M.D. filed 258 Medicare Part D claims in 2023 as a Infectious Disease Physician in SOMERSET, New Jersey, prescribing 96% generic.

258
Part D claims, 2023
96%
generic prescribing
$352.33
industry payments (Sunshine Act)

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.

UDAY KUMAR, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

258 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

UDAY KUMAR, 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).

What does the federal data show about UDAY KUMAR, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/20/2006

NPI 1508886540

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

258 68% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in New Jersey

How Infectious Disease Physician compares to other specialties among New Jersey providers

New Jersey providers

Infectious Disease Physician share within New Jersey

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within New Jersey

Specialty board-certification context

Estimated specialty board-certified rate — Infectious Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Infectious Disease Physician ABMS/AOA estimate

Est. board-certified rate (Infectious Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Infectious Disease 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).

UDAY KUMAR, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 1553 ROUTE 27, SOMERSET, NJ, 08873, with a listed phone of (908) 429-5755. NPI 1508886540 was issued on 07/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KUMAR 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 258 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $62K in drug spend, split 4% brand-name and 96% 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.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

1553 ROUTE 27
SOMERSET, NJ 08873

Provider Details

NPI 1508886540
Specialty Infectious Disease Physician
Credentials M.D.
Gender Male
NPI Issued 07/20/2006

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 UDAY KUMAR, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$352

Largest payer

Astellas Pharma US Inc

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 · Generic-heavy

UDAY KUMAR, M.D. — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 258 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.

258
Total Claims
$62K
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
401
Total Day Supply
10,316
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$38K
Generic Drug Cost
$24K
Antibiotic Claims
160

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
2.56
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

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

What UDAY KUMAR, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Ethambutol Hcl
48
Rifampin
25
Vancomycin Hcl
25
Azithromycin
24
Cephalexin
24
Doxycycline Hyclate
23
Amoxicillin
18
Cefazolin Sodium
15

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

Infectious Disease Physician Overview

How UDAY KUMAR, M.D. fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

UDAY KUMAR, M.D.'s 258 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as KUMAR.

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is UDAY KUMAR, M.D.'s specialty?
UDAY KUMAR, M.D. specializes in Infectious Disease Physician and practices in SOMERSET, New Jersey. Credentials: M.D..
How much does UDAY KUMAR, M.D. prescribe under Medicare Part D?
In 2023, UDAY KUMAR, M.D. wrote 258 Medicare Part D claims totaling $62K in drug costs for 64 beneficiaries.
Where is UDAY KUMAR, M.D. located?
UDAY KUMAR, M.D. is located at 1553 ROUTE 27, SOMERSET, NJ, 08873. Phone: (908) 429-5755.
What is UDAY KUMAR, M.D.'s NPI number?
UDAY KUMAR, M.D.'s National Provider Identifier (NPI) is 1508886540, issued on 07/20/2006.
Does UDAY KUMAR, M.D. prescribe more brand-name or generic drugs?
UDAY KUMAR, M.D.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $38K in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does UDAY KUMAR, M.D. prescribe most often?
Based on 2023 Medicare Part D data, UDAY KUMAR, M.D.'s most frequently prescribed drugs include Ethambutol Hcl, Rifampin, Vancomycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does UDAY KUMAR, M.D. accept Medicare?
UDAY KUMAR, M.D. appears in CMS Medicare data with 258 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify UDAY KUMAR, M.D.'s credentials?
UDAY KUMAR, M.D.'s NPI is 1508886540 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