Charles Stephen Foster, M.D.
Ophthalmology Physician · Waltham, MA
Charles Stephen Foster, M.D. is an ophthalmology physician with a practice address in Waltham, Massachusetts, and NPI 1285617530, issued on Nov 21, 2005. Check the license (Massachusetts 37755, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles Stephen Foster
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 37755 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1440 Main Street, Waltham, MA 02451
- Phone
- (781) 891-6377
- Enumerated
- Nov 21, 2005
- Record last updated
- May 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (617) 494-1430
- Medicaid ID
- 2030667 MA
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 791 in Massachusetts → Look up another NPI →
Also registered at 1440 Main Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Anesi, M.D.Ophthalmology Physician1003052788
- Juan Mallari, MDAnesthesiology Physician1508834854
Verify Charles Stephen Foster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 37755Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average ophthalmology physician in 2024
478 Medicare Part D claims for 126 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Humira(Cf) Pen32 claims
- Brimonidine Tartrate24 claims
- Prolensa23 claims
- Lumigan20 claims
- Bromfenac Sodium19 claims
- Acyclovir15 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): 100 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).
Industry payments in 2024: $6,254.59
6 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Charles Stephen Foster among 791 ophthalmology physician records in Massachusetts
Charles Stephen Foster, M.D. is one of 791 ophthalmology physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 77% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2015 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Massachusetts
There are 791 ophthalmology physician records in Massachusetts.
All 791 in Massachusetts → Every provider in Waltham → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Stephen Anesi, M.D.Waltham, MA 024511003052788
- Peter Chang, M.D.Waltham, MA 024511801107859
- Ambika Hoguet, M.D.Waltham, MA 024511558689620
- Kathryn Masselam Hatch, M.D.Watham, MA 024511528265824
- Jonathan Talamo, MDWaltham, MA 024511942292560
- Nandini Venkateswaran, M.D.Waltham, MA 024511265813992
- Richard Beckman, M.D.Waltham, MA 024521417996224
- Richard Dornfeld, M.D.Waltham, MA 024531457441404
Common questions
What is Charles Stephen Foster, M.D.'s NPI number?
Charles Stephen Foster, M.D.'s National Provider Identifier (NPI) is 1285617530, issued on Nov 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles Stephen Foster, M.D. located?
The NPPES record lists a practice address at 1440 Main Street, Waltham, MA, 02451. Phone: (781) 891-6377. Providers update this record themselves, so call before visiting.
How can I verify Charles Stephen Foster, M.D.'s license?
NPPES lists Massachusetts license number 37755, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles Stephen Foster, M.D. prescribe under Medicare Part D?
In 2024, Charles Stephen Foster, M.D. had 478 Medicare Part D claims for 126 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Charles Stephen Foster, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.