NPPES file of Aug 9, 2026

John C. Baer, M.D.

Ophthalmology Physician · Baltimore, MD

John C. Baer, M.D. is an ophthalmology physician with a practice address in Baltimore, Maryland, and NPI 1013984848, issued on Mar 1, 2006. Check the license (Maryland D0029740, 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
1013984848
Name
John C. Baer
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
D0029740 MD
MD418865 PA
Self-reported in NPPES; status is on the state search
Practice location
600 N Wolfe St, Baltimore, MD 21287
Phone
(410) 955-5000
Enumerated
Mar 1, 2006
Record last updated
Dec 12, 2024
Medicaid ID
D0029740 MD
Medicare enrollment
Enrolled (PECOS I20110802000442); may accept Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 1982
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.
Download card Updates feed

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 John C. Baer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0029740
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

56% fewer Medicare Part D claims than the average ophthalmology physician in 2024

667 Medicare Part D claims for 215 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. John Baer667
  2. Specialty average1,518

Most prescribed

  1. Latanoprost241 claims
  2. Lumigan66 claims
  3. Dorzolamide Hcl64 claims
  4. Dorzolamide-Timolol60 claims
  5. Timolol Maleate53 claims
  6. Travoprost47 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 MIPS final score for 2023 (Medicare payment program): 42.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score72.9
  2. Costout of 100 · 30%18.5
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities40 of 40 points · 15%100.0

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

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).

John C. Baer among 588 ophthalmology physician records in Maryland

John C. Baer, 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
  • Graduated1982 · median 2002 among the 369 with a school on file
  • Record last updated2024 · 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. Heather Bartlett Casparis, M.D.Baltimore, MD 212871629033147
  3. Neil Bressler, M.D.Baltimore, MD 212871790742245
  4. Peter Campochiaro, M.D.Baltimore, MD 212871598723850
  5. Marianne Cowley, MDBaltimore, MD 212871811964448
  6. Earl Craven, MDBaltimore, MD 212871457354821
  7. Morton Goldberg, M.D.Baltimore, MD 212871578516696
  8. Laura Green, M.D.Baltimore, MD 212871255382263

Common questions

What is John C. Baer, M.D.'s NPI number?

John C. Baer, M.D.'s National Provider Identifier (NPI) is 1013984848, issued on Mar 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John C. Baer, M.D. located?

The NPPES record lists a practice address at 600 N Wolfe St, Baltimore, MD, 21287. Phone: (410) 955-5000. Providers update this record themselves, so call before visiting.

How can I verify John C. Baer, M.D.'s license?

NPPES lists Maryland license number D0029740, 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 John C. Baer, M.D. prescribe under Medicare Part D?

In 2024, John C. Baer, M.D. had 667 Medicare Part D claims for 215 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is John C. Baer, M.D.'s MIPS final score?

The 2023 MIPS final score is 42.4 of 100. 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.