Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Roger H Knowlton, DO

Individual provider Obstetrics & Gynecology Physician · NPI 1588685218

Roger H Knowlton, DO practises Obstetrics/Gynecology in Berlin, Vermont. Qualified in 1983, 43 years ago. Practices with Central Vermont Medical Center Inc, a 240-clinician group and accepts Medicare assignment. Licensed in Vermont.

Years since qualifying
43
Licensed in
VT
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

130 Fisher Rd Mob-A Ste 1-4
Berlin, VT 05602-9516 Not confirmed with CMS for 11 years — call before visiting
Phone: (802) 371-5961
Fax: (802) 371-5960
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 032-0000288 (VT)

Record details

NPI number1588685218
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 21, 2006
Last updated in NPPESDecember 4, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Central Vermont Medical Center Inc — 240 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Hernia repair (minimally invasive) 1–10 times
Hip replacement 1–10 times
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients11
Services billed 11 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Central Vermont Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 240 clinicians in the practice; 12 are shown here.

Other providers in Berlin