Adam Theodore Gerstenblith, MD
Retina Specialist (Ophthalmology) Physician · Hagerstown, MD
Adam Theodore Gerstenblith, MD is a retina specialist (ophthalmology) physician with a practice address in Hagerstown, Maryland, and NPI 1265654875, issued on May 3, 2007. Check the license (Maryland D0075032, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Adam Theodore Gerstenblith
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License numbers
- D0075032 MD
21124 MD
MD442919 PA
Self-reported in NPPES; status is on the state search - Practice location
- 246 Eastern Blvd N, Hagerstown, MD 21740
- Phone
- (301) 671-2400
- Enumerated
- May 3, 2007
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (301) 671-2403
- Medicare enrollment
- Enrolled (PECOS I20130607000246); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 48 in Maryland → Look up another NPI →
Also registered at 246 Eastern Blvd N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Parnes, MDRetina Specialist (Ophthalmology) Physician1407824360
Verify Adam Theodore Gerstenblith in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0075032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
275 Medicare Part D claims for 125 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Prednisolone Acetate82 claims
- Polymyxin B Sul-Trimethoprim58 claims
- Dorzolamide-Timolol33 claims
- Neomycin-Polymyxin-Dexameth31 claims
- Difluprednate15 claims
- Bromfenac Sodium11 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: $73.08
3 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 1,253 providers of this specialty with any payment received $7,667.49 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.
Bills Medicare through one group practice
- Robert E Parnes MD LLCHagerstown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Theodore Gerstenblith among 48 retina specialist (ophthalmology) physician records in Maryland
Adam Theodore Gerstenblith, MD is one of 48 retina specialist (ophthalmology) physician records with a practice address in Maryland. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 44% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2007 · median 2002 among the 41 with a school on file
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in Maryland
There are 48 retina specialist (ophthalmology) physician records in Maryland.
All 48 in Maryland → Every provider in Hagerstown → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Robert Parnes, MDHagerstown, MD 217401407824360
- Erwin Puente, MDHagerstown, MD 217401003105677
- Adam Wenick, MD, PHDHagerstown, MD 217401619179264
- Ingrid Zimmer-Galler, M.D.Mount Airy, MD 217711285662080
- Sadiq Syed, MDSykesville, MD 217841609889047
- Prisca Diala, MDAnnapolis, MD 214011154516714
- Tamara Fackler, MDAnnapolis, MD 214011447208657
- Deborah Reid, M.D.Annapolis, MD 214011942243332
Common questions
What is Adam Theodore Gerstenblith, MD's NPI number?
Adam Theodore Gerstenblith, MD's National Provider Identifier (NPI) is 1265654875, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Adam Theodore Gerstenblith, MD located?
The NPPES record lists a practice address at 246 Eastern Blvd N, Hagerstown, MD, 21740. Phone: (301) 671-2400. Providers update this record themselves, so call before visiting.
How can I verify Adam Theodore Gerstenblith, MD's license?
NPPES lists Maryland license number D0075032, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Adam Theodore Gerstenblith, MD prescribe under Medicare Part D?
In 2024, Adam Theodore Gerstenblith, MD had 275 Medicare Part D claims for 125 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Adam Theodore Gerstenblith, MD'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.