2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1437538279
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NIKOLETTA PROUDAN

Endocrinology, Diabetes & Metabolism Physician in MORRISTOWN, 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
851
Medicare Part D claims · 182 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
43%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$382.15
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NIKOLETTA PROUDAN filed 851 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in MORRISTOWN, New Jersey, prescribing 43% generic.

851
Part D claims, 2023
43%
generic prescribing
Likely
board-certified (heuristic)

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.

NIKOLETTA PROUDAN's Medicare Part D volume vs every U.S. prescriber

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

851 Top 27% higher than 73% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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 certification likely (heuristic — not verified)

NIKOLETTA PROUDAN 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 NIKOLETTA PROUDAN?

Quality data not reported

NPI registry status

Active

Issued 05/26/2015

NPI 1437538279

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

851 68% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

Specialty distribution in New Jersey

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among New Jersey providers

New Jersey providers

Endocrinology, Diabetes & Metabolism Physician share within New Jersey

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within New Jersey

Specialty board-certification context

Estimated specialty board-certified rate — Endocrinology, Diabetes & Metabolism Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endocrinology, Diabetes & Metabolism Physician ABMS/AOA estimate

Est. board-certified rate (Endocrinology, Diabetes & Metabolism Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endocrinology, Diabetes & Metabolism 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).

NIKOLETTA PROUDAN appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider at 435 SOUTH ST STE 340, MORRISTOWN, NJ, 07960, with a listed phone of (973) 971-4599. NPI 1437538279 was issued on 05/26/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PROUDAN 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 851 prescription claims written by this provider, covering 182 Medicare beneficiaries and totaling roughly $436K in drug spend, split 57% brand-name and 43% 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.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

435 SOUTH ST STE 340
MORRISTOWN, NJ 07960

Provider Details

NPI 1437538279
Specialty Endocrinology, Diabetes & Metabolism Physician
Gender Female
NPI Issued 05/26/2015

Hospital and facility affiliations

Facilities where NIKOLETTA PROUDAN 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.

PRACTICE ASSOCIATES MEDICAL GROUP
MORRISTOWN, 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).

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 NIKOLETTA PROUDAN. Source: openpaymentsdata.cms.gov.

Total received

$382

Largest payer

Novo Nordisk 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 · Brand-heavy

NIKOLETTA PROUDAN — brand share 57.0%
Specialty average (est.)

57% brand-name claims vs 43% generic, on 851 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.

851
Total Claims
$436K
Total Drug Cost
182
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,833
Total Day Supply
53,880
Brand vs Generic
57% brand / 43% generic
Brand Drug Cost
$415K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
69.2 years
Avg HCC Risk Score
1.64
Gender Split
63% female / 37% male
Age Distribution
<65: 37, 65-74: 91, 75-84: 39, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

What NIKOLETTA PROUDAN 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
Levothyroxine Sodium
76
Ozempic
Semaglutide
45
Trulicity
Dulaglutide
45
Jardiance
Empagliflozin
40
Metformin Hcl
37
Metformin Hcl Er
Metformin Hcl
34
Humalog Kwikpen U-100
Insulin Lispro
28
Humalog
Insulin Lispro
26
Synthroid
Levothyroxine Sodium
26
Methimazole
19

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

Endocrinology, Diabetes & Metabolism Physician Overview

How NIKOLETTA PROUDAN fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

NIKOLETTA PROUDAN's 851 claims are below the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in New Jersey

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NIKOLETTA PROUDAN's specialty?
NIKOLETTA PROUDAN specializes in Endocrinology, Diabetes & Metabolism Physician and practices in MORRISTOWN, New Jersey.
How much does NIKOLETTA PROUDAN prescribe under Medicare Part D?
In 2023, NIKOLETTA PROUDAN wrote 851 Medicare Part D claims totaling $436K in drug costs for 182 beneficiaries.
Where is NIKOLETTA PROUDAN located?
NIKOLETTA PROUDAN is located at 435 SOUTH ST STE 340, MORRISTOWN, NJ, 07960. Phone: (973) 971-4599.
What is NIKOLETTA PROUDAN's NPI number?
NIKOLETTA PROUDAN's National Provider Identifier (NPI) is 1437538279, issued on 05/26/2015.
Does NIKOLETTA PROUDAN prescribe more brand-name or generic drugs?
NIKOLETTA PROUDAN's prescribing is 57% brand-name and 43% generic drugs by claim count, with $415K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does NIKOLETTA PROUDAN prescribe most often?
Based on 2023 Medicare Part D data, NIKOLETTA PROUDAN's most frequently prescribed drugs include Levothyroxine Sodium, Ozempic, Trulicity. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NIKOLETTA PROUDAN accept Medicare?
NIKOLETTA PROUDAN appears in CMS Medicare data with 851 Part D claims and 182 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NIKOLETTA PROUDAN's credentials?
NIKOLETTA PROUDAN's NPI is 1437538279. 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