NPPES file of Aug 9, 2026

Ronald Harrison McKenzie, MD

Family Medicine Physician · Loveland, CO

Ronald Harrison McKenzie, MD is a family medicine physician with a practice address in Loveland, Colorado, and NPI 1972184489, issued on Apr 16, 2021. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972184489
Name
Ronald Harrison McKenzie
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
303129 NC
Self-reported in NPPES; status is on the state search
Practice location
221 E 29TH St Ste 202, Loveland, CO 80538
Phone
(970) 624-5170
Enumerated
Apr 16, 2021
Record last updated
Aug 9, 2024
Fax
(970) 669-7521
Medicare enrollment
Enrolled (PECOS I20240911003367); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 2021
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 221 E 29TH St Ste 202

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kendra Blanco, APCCProfessional Counselor1922561752
  2. Leighann Brock, AGACNP-BCNurse Practitioner1366119356
  3. Dodie Deming, NPAcute Care Nurse Practitioner1275179228
  4. Lucas McGee, MDFamily Medicine Physician1912467168
  5. Nicholaus Mize, D.OInternal Medicine Physician1629459482

Verify Ronald Harrison McKenzie in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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65% fewer Medicare Part D claims than the average family medicine physician in 2024

1,240 Medicare Part D claims for 237 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Ronald McKenzie1,240
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium61 claims
  2. Gabapentin55 claims
  3. Omeprazole48 claims
  4. Losartan Potassium43 claims
  5. Amlodipine Besylate42 claims
  6. Levothyroxine Sodium41 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.

Bills Medicare through one group practice

  1. Poudre Valley Medical Group LLCLoveland, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ronald Harrison McKenzie among 3,563 family medicine physician records in Colorado

Ronald Harrison McKenzie, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.

  • NPI issued2021 · 92% of these records are older, 5% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2021 · median 2008 among the 2,077 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X 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 medicine physician records list a practice address in Loveland

They are 55 of the 2,113 NPPES records with a practice address in Loveland, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. Thomas Allen, MDLoveland, CO 805381629027198
  2. Austin Bailey, M.D.Loveland, CO 805381285612069
  3. James Danforth, MDLoveland, CO 805381497737720
  4. Zachary Flake, MDLoveland, CO 805381912946377
  5. Lori Hollos, M.D.Loveland, CO 805381326083999
  6. Prema Jacob, MDLoveland, CO 805381487633533
  7. Thomas Kasenberg, D.O.Loveland, CO 805381114976669
  8. Pamela Levine, MDLoveland, CO 805381669454542

Common questions

What is Ronald Harrison McKenzie, MD's NPI number?

Ronald Harrison McKenzie, MD's National Provider Identifier (NPI) is 1972184489, issued on Apr 16, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Ronald Harrison McKenzie, MD located?

The NPPES record lists a practice address at 221 E 29TH St Ste 202, Loveland, CO, 80538. Phone: (970) 624-5170. Providers update this record themselves, so call before visiting.

How can I verify Ronald Harrison McKenzie, MD's license?

Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ronald Harrison McKenzie, MD prescribe under Medicare Part D?

In 2024, Ronald Harrison McKenzie, MD had 1,240 Medicare Part D claims for 237 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.