Richard G. McKenzie, DO
Family Medicine Physician · Littleton, NH
Richard G. McKenzie, DO is a family medicine physician with a practice address in Littleton, New Hampshire, and NPI 1487776449, issued on Apr 3, 2007. Check the license (New Hampshire 14296, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Richard G. McKenzie
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 14296 NH
Self-reported in NPPES; status is on the state search - Practice location
- 580 St Johnsbury Road, Littleton, NH 03561
- Phone
- (603) 444-7070
- Enumerated
- Apr 3, 2007
- Record last updated
- Mar 17, 2023
- Fax
- (603) 575-6288
- Medicare enrollment
- Enrolled (PECOS I20090919000057); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2006
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 580 St Johnsbury Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Maroon, APRNAdult Health Nurse Practitioner1548988652
- Irving Smith, DOSleep Medicine (Internal Medicine) Physician1023206968
Verify Richard G. McKenzie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 14296Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average family medicine physician in 2024
10,069 Medicare Part D claims for 734 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 370 claims were for opioids.
Most prescribed
- Atorvastatin Calcium705 claims
- Lisinopril518 claims
- Amlodipine Besylate346 claims
- Levothyroxine Sodium345 claims
- Omeprazole334 claims
- Metoprolol Succinate313 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
- Littleton Hospital AssociationLittleton, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard G. McKenzie among 816 family medicine physician records in New Hampshire
Richard G. McKenzie, DO is one of 816 family medicine physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 57% of them.
- NPI issued2007 · 57% of these records are older, 36% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2006 · median 2003 among the 498 with a school on file
- Record last updated2023 · 62% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family medicine physician records list a practice address in Littleton
They are 10 of the 304 NPPES records with a practice address in Littleton, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Littleton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Andres Aguilera-Fish, MDLittleton, NH 035611578183992
- David Ferris, DOLittleton, NH 035611053389817
- Genevieve Kelley, MDLittleton, NH 035611588017446
- Philip Lawson, MDLittleton, NH 035611548235401
- David Nelson, D.O.Littleton, NH 035611457320178
- Ian Parker, D.O.Littleton, NH 035611124387139
- Kathleen Pearson, D.O.Littleton, NH 035611629159108
- Kathleen Smith, M.D.Littleton, NH 035611982688123
Common questions
What is Richard G. McKenzie, DO's NPI number?
Richard G. McKenzie, DO's National Provider Identifier (NPI) is 1487776449, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Richard G. McKenzie, DO located?
The NPPES record lists a practice address at 580 St Johnsbury Road, Littleton, NH, 03561. Phone: (603) 444-7070. Providers update this record themselves, so call before visiting.
How can I verify Richard G. McKenzie, DO's license?
NPPES lists New Hampshire license number 14296, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Richard G. McKenzie, DO prescribe under Medicare Part D?
In 2024, Richard G. McKenzie, DO had 10,069 Medicare Part D claims for 734 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.