2026 NPPES data Pulmonary Disease Physician NPI 1750387494 M.D.
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NANCY ALLEGAR, M.D.

Pulmonary Disease Physician in HILLSBOROUGH, 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
8K
Medicare Part D claims · 539 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: NANCY ALLEGAR, M.D. is a Pulmonary Disease Physician ([object Object]) practicing in HILLSBOROUGH, New Jersey with a Medicare Part D prescribing footprint of 8K claims across 539 beneficiaries — 17% brand-name prescribing .

What stands out: NANCY ALLEGAR, M.D. filed 8,319 Medicare Part D claims in 2023 across HILLSBOROUGH, New Jersey. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NANCY ALLEGAR, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NANCY ALLEGAR, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/27/2005

NPI 1750387494

Primary specialty

Pulmonary Disease Physician

Mid-sized

9,271 US NPIs in this specialty

Medicare Part D claims

8,319 471% vs specialty avg

2023 prescription claims

Specialty avg: 1,457

Specialty distribution in New Jersey

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

New Jersey providers

Pulmonary Disease Physician share within New Jersey

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

Specialty board-certification context

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

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

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

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

NANCY ALLEGAR, M.D. is a Pulmonary Disease Physician provider practicing in HILLSBOROUGH, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1750387494. 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.

NANCY ALLEGAR, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 390 AMWELL RD STE 501, HILLSBOROUGH, NJ, 08844, with a listed phone of (908) 281-1077. NPI 1750387494 was issued on 06/27/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALLEGAR 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 8,319 prescription claims written by this provider, covering 539 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 2.8%. 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.

Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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

390 AMWELL RD STE 501
HILLSBOROUGH, NJ 08844

Provider Details

NPI 1750387494
Specialty Pulmonary Disease Physician
Credentials M.D.
Gender Female
NPI Issued 06/27/2005

Hospital and facility affiliations

Facilities where NANCY ALLEGAR, 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.

PHOENIX REHABILITATION AND HEALTH SERVICES INC
CRANBERRY TOWNSHIP, PA
THE RADIOLOGY GROUP OF NEW JERSEY LLC
HILLSBOROUGH, NJ

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

NANCY ALLEGAR, M.D. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 8,319 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.

8,319
Total Claims
$1.1M
Total Drug Cost
539
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
17,298
Total Day Supply
507,457
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$856K
Generic Drug Cost
$221K
Opioid Claims
229 (2.8% rate)
Antibiotic Claims
274

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.02
Gender Split
73% female / 27% male
Age Distribution
<65: 61, 65-74: 253, 75-84: 177, 85+: 48

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
498
Montelukast Sodium
277
Synthroid
Levothyroxine Sodium
249
Famotidine
244
Metformin Hcl Er
Metformin Hcl
240
Alprazolam
222
Fluticasone Propionate
219
Amlodipine Besylate
202
Atorvastatin Calcium
176
Losartan Potassium
167

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

Pulmonary Disease Physician Overview

How NANCY ALLEGAR, M.D. fits within the Pulmonary Disease Physician landscape nationally.

9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider

NANCY ALLEGAR, M.D.'s 8,319 claims are above the specialty average of 1,457.

Nearby Pulmonary 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 ALLEGAR.

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

Frequently Asked Questions

What is NANCY ALLEGAR, M.D.'s specialty?
NANCY ALLEGAR, M.D. specializes in Pulmonary Disease Physician and practices in HILLSBOROUGH, New Jersey. Credentials: M.D..
How much does NANCY ALLEGAR, M.D. prescribe under Medicare Part D?
In 2023, NANCY ALLEGAR, M.D. wrote 8,319 Medicare Part D claims totaling $1.1M in drug costs for 539 beneficiaries.
Where is NANCY ALLEGAR, M.D. located?
NANCY ALLEGAR, M.D. is located at 390 AMWELL RD STE 501, HILLSBOROUGH, NJ, 08844. Phone: (908) 281-1077.
What is NANCY ALLEGAR, M.D.'s NPI number?
NANCY ALLEGAR, M.D.'s National Provider Identifier (NPI) is 1750387494, issued on 06/27/2005.
Does NANCY ALLEGAR, M.D. prescribe more brand-name or generic drugs?
NANCY ALLEGAR, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $856K in brand drug costs.
Does NANCY ALLEGAR, M.D. prescribe opioids?
Yes, NANCY ALLEGAR, M.D. had 229 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
How many Pulmonary Disease Physician providers are there in the US?
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does NANCY ALLEGAR, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NANCY ALLEGAR, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Montelukast Sodium, Synthroid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY ALLEGAR, M.D. accept Medicare?
NANCY ALLEGAR, M.D. appears in CMS Medicare data with 8,319 Part D claims and 539 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY ALLEGAR, M.D.'s credentials?
NANCY ALLEGAR, M.D.'s NPI is 1750387494 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