2026 NPPES data Women's Health Nurse Practitioner NPI 1922334937 NP
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CLARISSA ALUMBAUGH, NP

Women's Health Nurse Practitioner in CASTLE ROCK, Colorado. 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
133
Medicare Part D claims · 28 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$235.86
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CLARISSA ALUMBAUGH, NP is a Women's Health Nurse Practitioner ([object Object]) practicing in CASTLE ROCK, Colorado with a Medicare Part D prescribing footprint of 133 claims across 28 beneficiaries — 27% brand-name prescribing . Industry payments of $235.86 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CLARISSA ALUMBAUGH, NP filed 133 Medicare Part D claims in 2023 across CASTLE ROCK, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CLARISSA ALUMBAUGH, NP at a glance

Quality data not reported

NPI registry status

Active

Issued 10/26/2009

NPI 1922334937

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

133 49% vs specialty avg

2023 prescription claims

Specialty avg: 262

Specialty distribution in Colorado

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

Colorado providers

Women's Health Nurse Practitioner share within Colorado

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

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).

CLARISSA ALUMBAUGH, NP is a Women's Health Nurse Practitioner provider practicing in CASTLE ROCK, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1922334937. 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.

CLARISSA ALUMBAUGH, NP appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding NP credentials at 1 OAKWOOD PARK PLZ STE 206, CASTLE ROCK, CO, 80104, with a listed phone of (720) 924-2548. NPI 1922334937 was issued on 10/26/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALUMBAUGH 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 133 prescription claims written by this provider, covering 28 Medicare beneficiaries and totaling roughly $58K in drug spend, split 27% brand-name and 73% 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

1 OAKWOOD PARK PLZ STE 206
CASTLE ROCK, CO 80104

Provider Details

NPI 1922334937
Specialty Women's Health Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 10/26/2009

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 CLARISSA ALUMBAUGH, NP. Source: openpaymentsdata.cms.gov.

Total received

$236

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 · Above average

CLARISSA ALUMBAUGH, NP — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 133 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.

133
Total Claims
$58K
Total Drug Cost
28
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
265
Total Day Supply
7,755
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$53K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
0.73

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ozempic
Semaglutide
30
Zaleplon
12
Progesterone
"Progesterone
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 CLARISSA ALUMBAUGH, 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

CLARISSA ALUMBAUGH, NP's 133 claims are below the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in Colorado

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

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

Frequently Asked Questions

What is CLARISSA ALUMBAUGH, NP's specialty?
CLARISSA ALUMBAUGH, NP specializes in Women's Health Nurse Practitioner and practices in CASTLE ROCK, Colorado. Credentials: NP.
How much does CLARISSA ALUMBAUGH, NP prescribe under Medicare Part D?
In 2023, CLARISSA ALUMBAUGH, NP wrote 133 Medicare Part D claims totaling $58K in drug costs for 28 beneficiaries.
Where is CLARISSA ALUMBAUGH, NP located?
CLARISSA ALUMBAUGH, NP is located at 1 OAKWOOD PARK PLZ STE 206, CASTLE ROCK, CO, 80104. Phone: (720) 924-2548.
What is CLARISSA ALUMBAUGH, NP's NPI number?
CLARISSA ALUMBAUGH, NP's National Provider Identifier (NPI) is 1922334937, issued on 10/26/2009.
Does CLARISSA ALUMBAUGH, NP prescribe more brand-name or generic drugs?
CLARISSA ALUMBAUGH, NP's prescribing is 27% brand-name and 73% generic drugs by claim count, with $53K 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 CLARISSA ALUMBAUGH, NP prescribe most often?
Based on 2023 Medicare Part D data, CLARISSA ALUMBAUGH, NP's most frequently prescribed drugs include Ozempic, Zaleplon, Progesterone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CLARISSA ALUMBAUGH, NP accept Medicare?
CLARISSA ALUMBAUGH, NP appears in CMS Medicare data with 133 Part D claims and 28 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CLARISSA ALUMBAUGH, NP's credentials?
CLARISSA ALUMBAUGH, NP's NPI is 1922334937 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