NPI registry status
Active
2026 NPPES data Primary Care Nurse Practitioner NPI 1922402353
Verify on CMS → Erin Gronenthal
Primary Care Nurse Practitioner in Lovlenad, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,138 in Primary Care Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
5K
Medicare Part D claims · 524 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$36.46
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Erin Gronenthal filed 4,682 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in Lovlenad, Colorado, prescribing 87% generic.
- 5K
- Part D claims, 2023
- 87%
- generic prescribing
- $36.46
- 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.
Erin Gronenthal's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,682 Top 7% higher than 93% of 1,370,886 prescribers
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 Erin Gronenthal?
Quality data not reportedPrimary specialty
Primary Care Nurse Practitioner
Medicare Part D claims
4,682 244% vs specialty avg
Specialty distribution in Colorado
How Primary Care Nurse Practitioner compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Primary Care Nurse Practitioner. Verify directly:
How MIPS and board certification work
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).
Erin Gronenthal appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider at 1558 ANGORA DRIVE, Lovlenad, CO, 80537, with a listed phone of (309) 369-4894. NPI 1922402353 was issued on 10/14/2014.
Medicare Part D records for calendar year 2023 show 4,682 prescription claims written by this provider, covering 524 Medicare beneficiaries and totaling roughly $429K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.2%.
Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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
Provider Details
| NPI | 1922402353 |
|---|---|
| Specialty | Primary Care Nurse Practitioner |
| Gender | Female |
| NPI Issued | 10/14/2014 |
Hospital and facility affiliations
Facilities where Erin Gronenthal 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.
According to CMS billing records, Erin Gronenthal is affiliated with 3 Medicare-billing facilities.
Banner Health Physicians Colorado LLC
Loveland, CO
Select Physical Therapy Holdings Inc
Loveland, CO
Select Physical Therapy OF West Denver Limited Partnership
Loveland, 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).
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 Erin Gronenthal. Source: openpaymentsdata.cms.gov.
Total received
$36
Largest payer
PFIZER 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
Erin Gronenthal - brand share 13.0%
Primary Care Nurse Practitioner average
13% brand-name claims vs 87% generic, on 4,682 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.
4,682
Total Claims
$429K
Total Drug Cost
524
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,419
- Total Day Supply
- 333,892
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $342K
- Generic Drug Cost
- $86K
- Opioid Claims
- 101 (2.2% rate)
- Antibiotic Claims
- 128
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 72% female / 28% male
- Age Distribution
- <65: 38, 65-74: 248, 75-84: 162, 85+: 76
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Erin Gronenthal prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
379 claims
- Levothyroxine Sodium
Levothyroxine Sodium
345 claims
- Lisinopril
Lisinopril
274 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
164 claims
- Amlodipine Besylate 137
Amlodipine Besylate
137 claims
- Gabapentin 123
Gabapentin
123 claims
- Losartan Potassium 105
Losartan Potassium
105 claims
- Furosemide 85
Furosemide
85 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 379 |
| Levothyroxine Sodium | 345 |
| Lisinopril | 274 |
| Rosuvastatin Calcium | 164 |
| Amlodipine Besylate | 137 |
| Gabapentin | 123 |
| Losartan Potassium | 105 |
| Furosemide | 85 |
| Trazodone Hcl | 83 |
| Hydrochlorothiazide | 82 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Primary Care Nurse Practitioner Overview
How Erin Gronenthal fits within the Primary Care Nurse Practitioner landscape nationally.
10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider
Erin Gronenthal's 4,682 claims are above the specialty average of 1,363.
Nearby Primary Care Nurse Practitioner Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Gronenthal.
Dr. Lona Arotin
ACNP
Aurora, CO
Sujin Baek
Aurora, CO
Dr. Elena Bahena
FNP
Colorado Springs, CO
Dr. Emily Barton
A-GNP-C
Morrison, CO
Dr. Sherrod Beall
N.P.
Cortez, CO
Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Primary Care Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
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Frequently Asked Questions
What is Erin Gronenthal's specialty? ▼
Erin Gronenthal specializes in Primary Care Nurse Practitioner and practices in Lovlenad, Colorado.
How much does Erin Gronenthal prescribe under Medicare Part D? ▼
In 2023, Erin Gronenthal wrote 4,682 Medicare Part D claims totaling $429K in drug costs for 524 beneficiaries.
Where is Erin Gronenthal located? ▼
Erin Gronenthal is located at 1558 ANGORA DRIVE, Lovlenad, CO, 80537. Phone: (309) 369-4894.
What is Erin Gronenthal's NPI number? ▼
Erin Gronenthal's National Provider Identifier (NPI) is 1922402353, issued on 10/14/2014.
Does Erin Gronenthal prescribe more brand-name or generic drugs? ▼
Erin Gronenthal's prescribing is 13% brand-name and 87% generic drugs by claim count, with $342K in brand drug costs.
Does Erin Gronenthal prescribe opioids? ▼
Yes, Erin Gronenthal had 101 opioid claims in 2023 with an opioid prescribing rate of 2.2%.
How many Primary Care Nurse Practitioner providers are there in the US? ▼
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does Erin Gronenthal prescribe most often? ▼
Based on 2023 Medicare Part D data, Erin Gronenthal's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Erin Gronenthal accept Medicare? ▼
Erin Gronenthal appears in CMS Medicare data with 4,682 Part D claims and 524 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Erin Gronenthal's credentials? ▼
Erin Gronenthal's NPI is 1922402353. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.