David C. Olken, D.O.
Internal Medicine Physician · Rochester, NH
David C. Olken, D.O. is an internal medicine physician with a practice address in Rochester, New Hampshire, and NPI 1679655260, issued on Oct 20, 2006. Check the license (New Hampshire 8512, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- David C. Olken
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 8512 NH
Self-reported in NPPES; status is on the state search - Practice location
- 11 Whitehall RD, Rochester, NH 03867
- Phone
- (603) 330-7905
- Enumerated
- Oct 20, 2006
- Record last updated
- Nov 12, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040902000352); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 1987
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 673 in New Hampshire → Look up another NPI →
Also registered at 11 Whitehall RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Anthony, MD, FRCPC, FACEPEmergency Medicine Physician1760557367
- Junnel Balofinos, MDHospitalist Physician1275720104
- Katie Bunnell, APRNNurse Practitioner1679125512
- Jay Burns, M.D.Emergency Medicine Physician1336229616
- Shawn Campbell, MDAnesthesiology Physician1952480535
- Amanda Carbonella, NP-CFamily Nurse Practitioner1184585507
Verify David C. Olken in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 8512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
192 Medicare Part D claims for 95 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone15 claims
- Metoprolol Succinate11 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
- Wentworth Douglass Physician CorporationDover, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David C. Olken among 673 internal medicine physician records in New Hampshire
David C. Olken, D.O. is one of 673 internal medicine physician records with a practice address in New Hampshire. 81% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1987 · median 2005 among the 443 with a school on file
- Record last updated2015 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in New Hampshire
There are 673 internal medicine physician records in New Hampshire.
All 673 in New Hampshire → Every provider in Rochester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alexander Geller, MDRochester, NH 038671932281243
- Lea GottfredsenRochester, NH 038671831187723
- Richard Nealis, M.D.Rochester, NH 038671184704660
- Austin Rallis, MD, PHDRochester, NH 038671558820779
- Steven Jacobson, M.D.Plaistow, NH 038651558369702
- Michael Delahunt, MDSanbornville, NH 038721245274703
- Joseph Barefoot, M.D.North Conway, NH 038601689652679
- Matthew Doroski, DONorth Conway, NH 038601124588637
Common questions
What is David C. Olken, D.O.'s NPI number?
David C. Olken, D.O.'s National Provider Identifier (NPI) is 1679655260, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David C. Olken, D.O. located?
The NPPES record lists a practice address at 11 Whitehall RD, Rochester, NH, 03867. Phone: (603) 330-7905. Providers update this record themselves, so call before visiting.
How can I verify David C. Olken, D.O.'s license?
NPPES lists New Hampshire license number 8512, 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 David C. Olken, D.O. prescribe under Medicare Part D?
In 2024, David C. Olken, D.O. had 192 Medicare Part D claims for 95 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.