NPPES file of Aug 9, 2026

Peter Louis Gehlbach, M.D.

Ophthalmology Physician · Baltimore, MD

Peter Louis Gehlbach, M.D. is an ophthalmology physician with a practice address in Baltimore, Maryland, and NPI 1770537102, issued on May 20, 2006. Check the license (Maryland D56021, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770537102
Name
Peter Louis Gehlbach
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
D56021 MD
Self-reported in NPPES; status is on the state search
Practice location
600 N Wolfe St, Baltimore, MD 21287
Phone
(410) 955-5080
Enumerated
May 20, 2006
Record last updated
Feb 6, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
339505700 MD
Medicare enrollment
Enrolled (PECOS I20100609000828); may accept Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1986
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 600 N Wolfe St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Abdulrahman Abodarahim, MBBCHOphthalmology Physician1770182560
  2. Aida Abou-ZamzamStudent in an Organized Health Care Education/Training Program1891456034
  3. Mya AbousyStudent in an Organized Health Care Education/Training Program1700422169
  4. Christopher Abularrage, MDVascular Surgery Physician1063675908
  5. Sahaja Acharya, M.D.Radiation Oncology Physician1639436603
  6. Stephen Achuff, M.D.Cardiovascular Disease Physician1326001033

Verify Peter Louis Gehlbach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D56021
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average ophthalmology physician in 2024

39 Medicare Part D claims for 16 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 62% of claims.

  1. Peter Gehlbach39
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate15 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $51.93

1 payment: food and beverage; the largest payer was Alcon Vision LLC. 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.

  1. Peter Gehlbach$51.93
  2. Specialty average$4,535.02

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

  1. Johns Hopkins UniversityLutherville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter Louis Gehlbach among 588 ophthalmology physician records in Maryland

Peter Louis Gehlbach, M.D. is one of 588 ophthalmology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 44% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1986 · median 2002 among the 369 with a school on file
  • Record last updated2013 · 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Maryland

There are 588 ophthalmology physician records in Maryland.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Esen Akpek, M.D.Baltimore, MD 212871851356943
  2. John Baer, M.D.Baltimore, MD 212871013984848
  3. Heather Bartlett Casparis, M.D.Baltimore, MD 212871629033147
  4. Neil Bressler, M.D.Baltimore, MD 212871790742245
  5. Peter Campochiaro, M.D.Baltimore, MD 212871598723850
  6. Marianne Cowley, MDBaltimore, MD 212871811964448
  7. Earl Craven, MDBaltimore, MD 212871457354821
  8. Morton Goldberg, M.D.Baltimore, MD 212871578516696

Common questions

What is Peter Louis Gehlbach, M.D.'s NPI number?

Peter Louis Gehlbach, M.D.'s National Provider Identifier (NPI) is 1770537102, issued on May 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter Louis Gehlbach, M.D. located?

The NPPES record lists a practice address at 600 N Wolfe St, Baltimore, MD, 21287. Phone: (410) 955-5080. Providers update this record themselves, so call before visiting.

How can I verify Peter Louis Gehlbach, M.D.'s license?

NPPES lists Maryland license number D56021, 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 Peter Louis Gehlbach, M.D. prescribe under Medicare Part D?

In 2024, Peter Louis Gehlbach, M.D. had 39 Medicare Part D claims for 16 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Peter Louis Gehlbach, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.