2026 NPPES data Women's Health Nurse Practitioner NPI 1366581787 NP
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REBECCA PAPAMIHALAKIS, NP

Women's Health Nurse Practitioner in MUNSTER, Indiana. 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
278
Medicare Part D claims · 88 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$528.38
24 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

REBECCA PAPAMIHALAKIS, NP filed 278 Medicare Part D claims in 2023 as a Women's Health Nurse Practitioner in MUNSTER, Indiana, prescribing 76% generic.

278
Part D claims, 2023
76%
generic prescribing
$528.38
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.

REBECCA PAPAMIHALAKIS, NP's Medicare Part D volume vs every U.S. prescriber

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

278 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

What does the federal data show about REBECCA PAPAMIHALAKIS, NP?

Quality data not reported

NPI registry status

Active

Issued 02/05/2007

NPI 1366581787

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

278 6% vs specialty avg

2023 prescription claims

Specialty avg: 262

Specialty distribution in Indiana

How Women's Health Nurse Practitioner compares to other specialties among Indiana providers

Indiana providers

Women's Health Nurse Practitioner share within Indiana

1. Women's Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Women's Health Nurse Practitioner share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Women's Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Women's Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Women's Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Women's Health Nurse Practitioner) — 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).

REBECCA PAPAMIHALAKIS, NP appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding NP credentials at 9800 VALPARAISO DR, MUNSTER, IN, 46321, with a listed phone of (219) 836-5800. NPI 1366581787 was issued on 02/05/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PAPAMIHALAKIS 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 278 prescription claims written by this provider, covering 88 Medicare beneficiaries and totaling roughly $35K in drug spend, split 24% brand-name and 76% 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.

Women's Health Nurse Practitioner is a mid-sized specialty nationwide, with 9,452 enrolled providers across 55 states and an average of 262 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

9800 VALPARAISO DR
MUNSTER, IN 46321

Provider Details

NPI 1366581787
Specialty Women's Health Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 02/05/2007

Hospital and facility affiliations

Facilities where REBECCA PAPAMIHALAKIS, NP 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.

219 HEALTH NETWORK INC
MUNSTER, IN

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 REBECCA PAPAMIHALAKIS, NP. Source: openpaymentsdata.cms.gov.

Total received

$528

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 · Typical

REBECCA PAPAMIHALAKIS, NP — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 278 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.

278
Total Claims
$35K
Total Drug Cost
88
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
458
Total Day Supply
11,503
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$30K
Generic Drug Cost
$5K
Antibiotic Claims
39

Patient Demographics

Average Patient Age
66.0 years
Avg HCC Risk Score
0.91
Age Distribution
<65: 20, 65-74: 49, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What REBECCA PAPAMIHALAKIS, NP 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
Alendronate Sodium
28
Estradiol
28
Fluconazole
23
Clotrimazole-Betamethasone
Clotrimazole/Betamethasone Dip
17
Venlafaxine Hcl Er
Venlafaxine Hcl
17
Valacyclovir
Valacyclovir Hcl
16
Prempro
"Estrogen
N/A

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

Women's Health Nurse Practitioner Overview

How REBECCA PAPAMIHALAKIS, NP fits within the Women's Health Nurse Practitioner landscape nationally.

9,452
Women's Health Nurse Practitioner Providers in US
55
States with Women's Health Nurse Practitioner
262
Avg Claims per Provider

REBECCA PAPAMIHALAKIS, NP's 278 claims are above the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in Indiana

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

Compare Women's Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is REBECCA PAPAMIHALAKIS, NP's specialty?
REBECCA PAPAMIHALAKIS, NP specializes in Women's Health Nurse Practitioner and practices in MUNSTER, Indiana. Credentials: NP.
How much does REBECCA PAPAMIHALAKIS, NP prescribe under Medicare Part D?
In 2023, REBECCA PAPAMIHALAKIS, NP wrote 278 Medicare Part D claims totaling $35K in drug costs for 88 beneficiaries.
Where is REBECCA PAPAMIHALAKIS, NP located?
REBECCA PAPAMIHALAKIS, NP is located at 9800 VALPARAISO DR, MUNSTER, IN, 46321. Phone: (219) 836-5800.
What is REBECCA PAPAMIHALAKIS, NP's NPI number?
REBECCA PAPAMIHALAKIS, NP's National Provider Identifier (NPI) is 1366581787, issued on 02/05/2007.
Does REBECCA PAPAMIHALAKIS, NP prescribe more brand-name or generic drugs?
REBECCA PAPAMIHALAKIS, NP's prescribing is 24% brand-name and 76% generic drugs by claim count, with $30K in brand drug costs.
How many Women's Health Nurse Practitioner providers are there in the US?
There are 9,452 Women's Health Nurse Practitioner providers across 55 states in the US. The average Women's Health Nurse Practitioner provider writes 262 Medicare Part D claims per year.
What drugs does REBECCA PAPAMIHALAKIS, NP prescribe most often?
Based on 2023 Medicare Part D data, REBECCA PAPAMIHALAKIS, NP's most frequently prescribed drugs include Alendronate Sodium, Estradiol, Fluconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does REBECCA PAPAMIHALAKIS, NP accept Medicare?
REBECCA PAPAMIHALAKIS, NP appears in CMS Medicare data with 278 Part D claims and 88 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify REBECCA PAPAMIHALAKIS, NP's credentials?
REBECCA PAPAMIHALAKIS, NP's NPI is 1366581787 with credentials NP. 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