William A. Boller, M.D.
Emergency Medicine Physician · Groton, CT
William A. Boller, M.D. is an emergency medicine physician with a practice address in Groton, Connecticut, and NPI 1972730380, issued on Jun 12, 2009. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William A. Boller
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- MD24366 ME
0101250100 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Wahoo Ave, Groton, CT 06349
- Phone
- (860) 694-2377
- Enumerated
- Jun 12, 2009
- Record last updated
- Apr 25, 2024
- Fax
- (860) 694-2590
- Medicare enrollment
- Enrolled (PECOS I20210126001150); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 846 in Connecticut → Look up another NPI →
Also registered at 1 Wahoo Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William A. Boller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average emergency medicine physician in 2024
173 Medicare Part D claims for 91 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone12 claims
- Azithromycin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Charles A Dean Memorial HospitalSangerville, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William A. Boller among 846 emergency medicine physician records in Connecticut
William A. Boller, M.D. is one of 846 emergency medicine physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.
- NPI issued2009 · 52% of these records are older, 45% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2009 · median 2011 among the 574 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Connecticut
There are 846 emergency medicine physician records in Connecticut.
All 846 in Connecticut → Every provider in Groton → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Peter Bertolozzi, D.O.Groton, CT 063401588841068
- Shrikant Deshpande, MD, MPHGroton, CT 063401891927455
- Barbara Deindorfer, MDNorth Stonington, CT 063591225087737
- Thomas Ceddia, MDNorwich, CT 063601497864029
- Susan Collemer, M.D.Norwich, CT 063601174570865
- Robert Dinwoodie, D.O.Norwich, CT 063601457358475
- Daniel Fagnant, DONorwich, CT 063601053344713
- Fred Fenton, MDNorwich, CT 063601568572667
Common questions
What is William A. Boller, M.D.'s NPI number?
William A. Boller, M.D.'s National Provider Identifier (NPI) is 1972730380, issued on Jun 12, 2009. An NPI identifies a provider in billing; it is not a license.
Where is William A. Boller, M.D. located?
The NPPES record lists a practice address at 1 Wahoo Ave, Groton, CT, 06349. Phone: (860) 694-2377. Providers update this record themselves, so call before visiting.
How can I verify William A. Boller, M.D.'s license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William A. Boller, M.D. prescribe under Medicare Part D?
In 2024, William A. Boller, M.D. had 173 Medicare Part D claims for 91 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is William A. Boller, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.