2026 NPPES data Family Medicine Physician NPI 1376673848 ARNP
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ROSALIND GUEST, ARNP

Family Medicine Physician in ARVADA, 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
2K
Medicare Part D claims · 186 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ROSALIND GUEST, ARNP filed 1,550 Medicare Part D claims in 2023 as a Family Medicine Physician in ARVADA, Colorado, prescribing 85% generic.

2K
Part D claims, 2023
85%
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.

ROSALIND GUEST, ARNP's Medicare Part D volume vs every U.S. prescriber

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

1,550 Top 19% higher than 81% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 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)

ROSALIND GUEST, ARNP 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 ROSALIND GUEST, ARNP?

Quality data not reported

NPI registry status

Active

Issued 03/06/2007

NPI 1376673848

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,550 55% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Colorado

How Family Medicine Physician compares to other specialties among Colorado providers

Colorado providers

Family Medicine Physician share within Colorado

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Colorado

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

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

ROSALIND GUEST, ARNP appears in the CMS NPPES registry as a Family Medicine Physician provider holding ARNP credentials at 15240 W 64TH AVE, ARVADA, CO, 80007, with a listed phone of (303) 463-7181. NPI 1376673848 was issued on 03/06/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUEST 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 1,550 prescription claims written by this provider, covering 186 Medicare beneficiaries and totaling roughly $192K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 2.1%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

15240 W 64TH AVE
ARVADA, CO 80007

Provider Details

NPI 1376673848
Specialty Family Medicine Physician
Credentials ARNP
Gender Female
NPI Issued 03/06/2007

Hospital and facility affiliations

Facilities where ROSALIND GUEST, ARNP 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.

POUDRE VALLEY MEDICAL GROUP LLC
ARVADA, CO

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

ROSALIND GUEST, ARNP — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 1,550 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.

1,550
Total Claims
$192K
Total Drug Cost
186
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,536
Total Day Supply
102,246
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$162K
Generic Drug Cost
$30K
Opioid Claims
33 (2.1% rate)
Antibiotic Claims
32

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
1.21
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What ROSALIND GUEST, ARNP 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
106
Lisinopril
81
Metformin Hcl
62
Atorvastatin Calcium
59
Amlodipine Besylate
58
Gabapentin
42
Trazodone Hcl
39
Albuterol Sulfate Hfa
Albuterol Sulfate
38
Citalopram Hbr
Citalopram Hydrobromide
35
Allopurinol
33

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

Family Medicine Physician Overview

How ROSALIND GUEST, ARNP fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

ROSALIND GUEST, ARNP's 1,550 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Colorado

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROSALIND GUEST, ARNP's specialty?
ROSALIND GUEST, ARNP specializes in Family Medicine Physician and practices in ARVADA, Colorado. Credentials: ARNP.
How much does ROSALIND GUEST, ARNP prescribe under Medicare Part D?
In 2023, ROSALIND GUEST, ARNP wrote 1,550 Medicare Part D claims totaling $192K in drug costs for 186 beneficiaries.
Where is ROSALIND GUEST, ARNP located?
ROSALIND GUEST, ARNP is located at 15240 W 64TH AVE, ARVADA, CO, 80007. Phone: (303) 463-7181.
What is ROSALIND GUEST, ARNP's NPI number?
ROSALIND GUEST, ARNP's National Provider Identifier (NPI) is 1376673848, issued on 03/06/2007.
Does ROSALIND GUEST, ARNP prescribe more brand-name or generic drugs?
ROSALIND GUEST, ARNP's prescribing is 15% brand-name and 85% generic drugs by claim count, with $162K in brand drug costs.
Does ROSALIND GUEST, ARNP prescribe opioids?
Yes, ROSALIND GUEST, ARNP had 33 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does ROSALIND GUEST, ARNP prescribe most often?
Based on 2023 Medicare Part D data, ROSALIND GUEST, ARNP's most frequently prescribed drugs include Levothyroxine Sodium, Lisinopril, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROSALIND GUEST, ARNP accept Medicare?
ROSALIND GUEST, ARNP appears in CMS Medicare data with 1,550 Part D claims and 186 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROSALIND GUEST, ARNP's credentials?
ROSALIND GUEST, ARNP's NPI is 1376673848 with credentials ARNP. 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