Erin Gronenthal
Family Nurse Practitioner · Loveland, CO
Erin Gronenthal is a family nurse practitioner with a practice address in Loveland, Colorado, and NPI 1922402353, issued on Oct 14, 2014. Check the license (Colorado 0991241, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Gronenthal
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 0991241 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1230 14TH St SW, Loveland, CO 80537
- Phone
- (309) 369-4894
- Enumerated
- Oct 14, 2014
- Record last updated
- Apr 17, 2026
- Medicare enrollment
- Enrolled (PECOS I20141203001976); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,492 in Colorado → Look up another NPI →
Also registered at 1230 14TH St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jaclyn Brown, NPFamily Nurse Practitioner1326738360
- Natasha DwyerRegistered Nurse1962338160
- Nancy Holman, FNPFamily Nurse Practitioner1124457353
- Mitchell Janasek, M.D.Family Medicine Physician1265525711
- Aaron Jarrett, M.D.Family Medicine Physician1689017394
- Elizabeth Little, FNPFamily Medicine Physician1952827974
Verify Erin Gronenthal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 0991241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,900 Medicare Part D claims for 527 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 133 claims were for opioids.
Most prescribed
- Atorvastatin Calcium395 claims
- Levothyroxine Sodium331 claims
- Lisinopril262 claims
- Rosuvastatin Calcium212 claims
- Amlodipine Besylate141 claims
- Gabapentin107 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $36.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Banner Health Physicians Colorado LLCLoveland, CO
- Select Physical Therapy Holdings IncLoveland, CO
- Select Physical Therapy OF West Denver Limited PartnershipLoveland, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Gronenthal among 3,492 family nurse practitioner records in Colorado
Erin Gronenthal is one of 3,492 family nurse practitioner records with a practice address in Colorado. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 29% of them.
- NPI issued2014 · 29% of these records are older, 67% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2014 · median 2019 among the 1,950 with a school on file
- Record last updated2026 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
55 family nurse practitioner records list a practice address in Loveland
They are 55 of the 2,113 NPPES records with a practice address in Loveland, and 3,492 family nurse practitioner records in Colorado.
All 3,492 in Colorado → Every provider in Loveland → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- John Abram, FNP-BCLoveland, CO 805371194125559
- Mallory Arthun, FNPLoveland, CO 805371386939189
- Elizabeth Cirbo, FNP, DNPLoveland, CO 805371962929083
- Nancy Decook, FNPCLoveland, CO 805371609921014
- Julie Deters, FNPLoveland, CO 805371861713075
- Nancy Holman, FNPLoveland, CO 805371124457353
- Janice Hugger, ARNPLoveland, CO 805371063430635
- Meagan Johnston, RN, NP-CLoveland, CO 805371548426497
Common questions
What is Erin Gronenthal's NPI number?
Erin Gronenthal's National Provider Identifier (NPI) is 1922402353, issued on Oct 14, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Erin Gronenthal located?
The NPPES record lists a practice address at 1230 14TH St SW, Loveland, CO, 80537. Phone: (309) 369-4894. Providers update this record themselves, so call before visiting.
How can I verify Erin Gronenthal's license?
NPPES lists Colorado license number 0991241, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Gronenthal prescribe under Medicare Part D?
In 2024, Erin Gronenthal had 4,900 Medicare Part D claims for 527 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.