Casey Masterson Kolb Nava, M.D.
Internal Medicine Physician · Berlin, VT
Casey Masterson Kolb Nava, M.D. is an internal medicine physician with a practice address in Berlin, Vermont, and NPI 1649561929, issued on Apr 21, 2011. Check the license (Vermont 0420013068, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Casey Masterson Kolb Nava
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0420013068 VT
Self-reported in NPPES; status is on the state search - Practice location
- 130 Fisher RD, Berlin, VT 05602
- Phone
- (802) 225-1743
- Enumerated
- Apr 21, 2011
- Record last updated
- May 5, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (802) 225-1745
- Medicaid ID
- 1024700 VT
- Medicare enrollment
- Enrolled (PECOS I20150507000638); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 326 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 Casey Masterson Kolb Nava in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVermont Board of Medical Practice
Search for license 0420013068Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
151 Medicare Part D claims for 48 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Furosemide15 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
- Central Vermont Medical Center IncBarre, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Casey Masterson Kolb Nava among 326 internal medicine physician records in Vermont
Casey Masterson Kolb Nava, M.D. is one of 326 internal medicine physician records with a practice address in Vermont. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2011 · median 2007 among the 177 with a school on file
- Record last updated2015 · 71% 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 Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 internal medicine physician records list a practice address in Berlin
They are 20 of the 340 NPPES records with a practice address in Berlin, and 326 internal medicine physician records in Vermont.
All 326 in Vermont → Every provider in Berlin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohammad Amin, M.DBerlin, VT 056021104881101
- Martin Bak, MDBerlin, VT 056021629093554
- Peter Dale, MDBerlin, VT 056021649266966
- Laura Felsted, DOBerlin, VT 056021003857178
- Claudia Lee, M.D.Montpelier, VT 056021295780302
- Marvin Malek, MDBerlin, VT 056021417978149
- Colin McCreight, M.D.Berlin, VT 056021174659858
- Peter Redford, M.D.Berlin, VT 056021205891686
Common questions
What is Casey Masterson Kolb Nava, M.D.'s NPI number?
Casey Masterson Kolb Nava, M.D.'s National Provider Identifier (NPI) is 1649561929, issued on Apr 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Casey Masterson Kolb Nava, M.D. located?
The NPPES record lists a practice address at 130 Fisher RD, Berlin, VT, 05602. Phone: (802) 225-1743. Providers update this record themselves, so call before visiting.
How can I verify Casey Masterson Kolb Nava, M.D.'s license?
NPPES lists Vermont license number 0420013068, 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.
How much does Casey Masterson Kolb Nava, M.D. prescribe under Medicare Part D?
In 2024, Casey Masterson Kolb Nava, M.D. had 151 Medicare Part D claims for 48 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.