Richard Frederick John Holtzen, D.M.D.
Specialist · Missoula, MT
Richard Frederick John Holtzen, D.M.D. is a specialist with a practice address in Missoula, Montana, and NPI 1588608616, issued on Jun 16, 2006. Check the license (Montana 2431, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Richard Frederick John Holtzen
- Credential
- D.M.D.
- Primary taxonomy
- Specialist 174400000X
- License numbers
- 2431 MT
3332-S228 NV
101008 CA
Self-reported in NPPES; status is on the state search - Practice location
- 805 S Reserve St, Missoula, MT 59801
- Phone
- (406) 381-6845
- Enumerated
- Jun 16, 2006
- Record last updated
- Nov 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 002202076 NV
- Entity
- Type 1 · individual
8 nearest specialist records → All 127 in Montana → Look up another NPI →
Also registered at 805 S Reserve St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa Pacheco, DONeuromusculoskeletal Medicine & OMM Physician1174661011
- Clark Taylor, M.D.,D.D.S.Oral & Maxillofacial Surgery (D.M.D.)1689745804
Verify Richard Frederick John Holtzen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 2431Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average specialist in 2024
866 Medicare Part D claims for 325 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 342 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen274 claims
- Ibuprofen197 claims
- Chlorhexidine Gluconate112 claims
- Penicillin V Potassium76 claims
- Amoxicillin-Clavulanate Potass59 claims
- Tramadol Hcl53 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.
Richard Frederick John Holtzen among 127 specialist records in Montana
Richard Frederick John Holtzen, D.M.D. is one of 127 specialist records with a practice address in Montana. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 64% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 4% of these records are
- Record last updated2016 · 86% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Montana
There are 127 specialist records in Montana.
All 127 in Montana → Every provider in Missoula → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Jeffrey Barilla, LMTMissoula, MT 598011952730574
- Tamara-Jo Beich, CMTMissoula, MT 598011063650059
- Steven Hensley, LMTMissoula, MT 598011760739486
- Michelle McClainMissoula, MT 598011912132481
- Jaime Stathis, CMTMissoula, MT 598011922296748
- George Stern, M.D.Missoula, MT 598011851393987
- Karin Fodness, LCSWMissoula, MT 598021699838193
- Joseph Weydt, MDMissoula, MT 598021215986401
Common questions
What is Richard Frederick John Holtzen, D.M.D.'s NPI number?
Richard Frederick John Holtzen, D.M.D.'s National Provider Identifier (NPI) is 1588608616, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Frederick John Holtzen, D.M.D. located?
The NPPES record lists a practice address at 805 S Reserve St, Missoula, MT, 59801. Phone: (406) 381-6845. Providers update this record themselves, so call before visiting.
How can I verify Richard Frederick John Holtzen, D.M.D.'s license?
NPPES lists Montana license number 2431, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Richard Frederick John Holtzen, D.M.D. prescribe under Medicare Part D?
In 2024, Richard Frederick John Holtzen, D.M.D. had 866 Medicare Part D claims for 325 beneficiaries; the average among specialist prescribers was 1,380. 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.