Roger H. Knowlton, DO
Obstetrics & Gynecology Physician · Berlin, VT
Roger H. Knowlton, DO is an obstetrics & gynecology physician with a practice address in Berlin, Vermont, and NPI 1588685218, issued on Jul 21, 2006. Check the license (Vermont 032-0000288, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Roger H. Knowlton
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 032-0000288 VT
Self-reported in NPPES; status is on the state search - Practice location
- 130 Fisher RD, Berlin, VT 05602
- Phone
- (802) 371-5961
- Enumerated
- Jul 21, 2006
- Record last updated
- Dec 4, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (802) 371-5960
- Medicaid ID
- 0005632 VT
- Medicare enrollment
- Enrolled (PECOS I20051219000128); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 104 in Vermont → Look up another NPI →
Also registered at 130 Fisher RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kenneth Adler, MDPsychiatry Physician1417976887
- Aimee Ahari, PA-CPhysician Assistant1639448418
- Maria Aveni, M.D.Anesthesiology Physician1205858495
- Martin Bak, MDInternal Medicine Physician1629093554
- Kay BarrettClinical Psychologist1285759530
- Christian Bean, M.D.Orthopaedic Surgery Physician1831155324
Verify Roger H. Knowlton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVermont Board of Medical Practice
Search for license 032-0000288Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Central Vermont Medical Center IncBerlin, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roger H. Knowlton among 104 obstetrics & gynecology physician records in Vermont
Roger H. Knowlton, DO is one of 104 obstetrics & gynecology physician records with a practice address in Vermont. 72% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 49% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1983 · median 2009 among the 61 with a school on file
- Record last updated2014 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 obstetrics & gynecology physician records list a practice address in Berlin
They are 9 of the 340 NPPES records with a practice address in Berlin, and 104 obstetrics & gynecology physician records in Vermont.
All 104 in Vermont → Every provider in Berlin → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- John Coates, MDMontpelier, VT 056021669425336
- Roger Ehret, MDBerlin, VT 056021528089307
- Molly Flanagan, MDBerlin, VT 056021467945592
- Sheila Glaess, MDBerlin, VT 056021215954094
- Colleen Horan, MDBerlin, VT 056021821017583
- Rachel Long, MDBerlin, VT 056021124414271
- Priyanka Singh, M.D.Berlin, VT 056021477864114
- Julie Vogel, MDBerlin, VT 056021396954871
Common questions
What is Roger H. Knowlton, DO's NPI number?
Roger H. Knowlton, DO's National Provider Identifier (NPI) is 1588685218, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roger H. Knowlton, DO located?
The NPPES record lists a practice address at 130 Fisher RD, Berlin, VT, 05602. Phone: (802) 371-5961. Providers update this record themselves, so call before visiting.
How can I verify Roger H. Knowlton, DO's license?
NPPES lists Vermont license number 032-0000288, as entered by the provider. Search the Vermont Board of Medical Practice at https://www.healthvermont.gov/systems/board-medical-practice. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.