Steven Balser, M.D.
Emergency Medical Services (Emergency Medicine) Physician · Ayer, MA
Steven Balser, M.D. is an emergency medical services (emergency medicine) physician with a practice address in Ayer, Massachusetts, and NPI 1750468393, issued on Nov 1, 2006. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Steven Balser
- Credential
- M.D.
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- Practice location
- 200 Groton RD, Ayer, MA 01432
- Phone
- (978) 784-9000
- Enumerated
- Nov 1, 2006
- Entity
- Type 1 · individual
Also registered at 200 Groton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessica Blood, RDRegistered Dietitian1174114672
- Gary Donia, MPTPhysical Therapist1033321344
Verify Steven Balser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
52% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
208 Medicare Part D claims for 170 beneficiaries, against an average of 430 among the 2,133 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass28 claims
- Azithromycin24 claims
- Doxycycline Hyclate20 claims
- Cefpodoxime Proxetil16 claims
- Prednisone16 claims
- Cephalexin14 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.
2 hospital and facility affiliations
- Beth Israel Deaconess Medical Center IncBoston, MA
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
2 emergency medical services (emergency medicine) physician records list a Ayer practice address
They are 2 of the 118 NPPES records with a Ayer practice address, and 61 emergency medical services (emergency medicine) physician records in Massachusetts.
All 2 in Ayer → All 61 in Massachusetts → Every provider in Ayer →
Other emergency medical services (emergency medicine) physician records in Massachusetts
- Barbara Abrams, MDWeymouth, MA1669429411
- Isabel Algaze-Gonzalez, M.D.Boston, MA1285999060
- Luke Allen, DO, MPHSpringfield, MA1962105635
- Robert Baevsky, MDSpringfield, MA1710061387
- Stephan Becker, MDTaunton, MA1174513899
- John Benanti, M.D.South Weymouth, MA1962483396
- Peter Bevins, M.D.Haverhill, MA1710900428
- Matthew Bivens, M.D.Boston, MA1487880084
- Jennifer Brinckerhoff, M.D.Canton, MA1548366990
- John Broach, MDWorcester, MA1629127477
Common questions
What is Steven Balser, M.D.'s NPI number?
Steven Balser, M.D.'s National Provider Identifier (NPI) is 1750468393, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven Balser, M.D. located?
The NPPES record lists a practice address at 200 Groton RD, Ayer, MA, 01432. Phone: (978) 784-9000. Providers update this record themselves, so call before visiting.
How can I verify Steven Balser, M.D.'s license?
Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven Balser, M.D. prescribe under Medicare Part D?
In 2024, Steven Balser, M.D. had 208 Medicare Part D claims for 170 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 430. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.