Daniel R. O'Brien, DDS
General Practice Dentistry · Fitchburg, WI
Daniel R. O'Brien, DDS is a general practice dentistry with a practice address in Fitchburg, Wisconsin, and NPI 1962440123, issued on Jun 2, 2006. Check the license (Wisconsin 4008-015, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Daniel R. O'Brien
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 4008-015 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2971 Chapel Valley RD, Fitchburg, WI 53711
- Phone
- (608) 661-6400
- Enumerated
- Jun 2, 2006
- Record last updated
- Jul 13, 2026
- Medicaid ID
- 33686000 WI
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 2,305 in Wisconsin → Look up another NPI →
Also registered at 2971 Chapel Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ammar Alsamawi, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1427619949
- Nicholas Anders, D.D.S., M.S.Dentist1538470844
- Allison Dowd, D.D.S.Pediatric Dentistry1982799870
- Leah Johnson, D.D.S.General Practice Dentistry1861841470
- Scott Johnson, DDSGeneral Practice Dentistry1336187574
- Ted LovcikGeneral Practice Dentistry1750335931
Verify Daniel R. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 4008-015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average general practice dentistry in 2024
71 Medicare Part D claims for 42 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin29 claims
- Sodium Fluoride22 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.
Daniel R. O'Brien among 2,305 general practice dentistry records in Wisconsin
Daniel R. O'Brien, DDS is one of 2,305 general practice dentistry records with a practice address in Wisconsin. 57% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 67% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 general practice dentistry records list a practice address in Fitchburg
They are 12 of the 740 NPPES records with a practice address in Fitchburg, and 2,305 general practice dentistry records in Wisconsin.
All 2,305 in Wisconsin → Every provider in Fitchburg → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Benjamin Farrow, D.D.S.Madison, WI 537111194854521
- Elizabeth Friend, DDSMadison, WI 537111700496007
- Scott Johnson, DDSFitchburg, WI 537111336187574
- Leah Johnson, D.D.S.Fitchburg, WI 537111861841470
- Ted LovcikFitchburg, WI 537111750335931
- Kelleen McClain, DDSFitchburg, WI 537111215981444
- Kyle MurphyMadison, WI 537111265599914
- David Penwell, D.D.S.Fitchburg, WI 537111235252768
Common questions
What is Daniel R. O'Brien, DDS's NPI number?
Daniel R. O'Brien, DDS's National Provider Identifier (NPI) is 1962440123, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel R. O'Brien, DDS located?
The NPPES record lists a practice address at 2971 Chapel Valley RD, Fitchburg, WI, 53711. Phone: (608) 661-6400. Providers update this record themselves, so call before visiting.
How can I verify Daniel R. O'Brien, DDS's license?
NPPES lists Wisconsin license number 4008-015, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Daniel R. O'Brien, DDS prescribe under Medicare Part D?
In 2024, Daniel R. O'Brien, DDS had 71 Medicare Part D claims for 42 beneficiaries; the average among general practice dentistry prescribers was 83. 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.