Richard Alan Gruen, M.D.
Ophthalmology Physician · Owings Mills, MD
Richard Alan Gruen, M.D. is an ophthalmology physician with a practice address in Owings Mills, Maryland, and NPI 1043221088, issued on Aug 11, 2006. Check the license (Maryland D0025907, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Richard Alan Gruen
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- D0025907 MD
Self-reported in NPPES; status is on the state search - Practice location
- 10 Crossroads Drive, Owings Mills, MD 21117
- Phone
- (410) 654-5700
- Enumerated
- Aug 11, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 654-5399
- Medicare enrollment
- Enrolled (PECOS I20100114000484); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1978
- Entity
- Type 1 · individual
Also registered at 10 Crossroads Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Ariete, P.T.Physical Therapist1366541617
- Stanley Huber, O.D.Optometrist1881796977
- Douglas McCorkle, M.D.Otolaryngology Physician1124111844
Verify Richard Alan Gruen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0025907Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average ophthalmology physician in 2024
1,772 Medicare Part D claims for 380 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Latanoprost741 claims
- Dorzolamide-Timolol319 claims
- Brimonidine Tartrate89 claims
- Prednisolone Acetate76 claims
- Pilocarpine Hcl69 claims
- Dorzolamide Hcl65 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): 66.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $256.42
5 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries 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.
Bills Medicare through one group practice
- Eye Care Associates OF Maryland LLCPikesville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in Maryland
There are 588 ophthalmology physician records in Maryland.
Other ophthalmology physician records in Maryland
- Abdulrahman Abodarahim, MBBCHBaltimore, MD1770182560
- Donald Abrams, M.D.Baltimore, MD1841253218
- Lisa Abrams, M.D.Lutherville, MD1972582393
- Neal Adams, MDSilver Spring, MD1851354500
- Richard Adler, M.D.Baltimore, MD1629076179
- Arturo Aglubat, M.D.Bel Air, MD1609855055
- Omar Ahmad, MDWaldorf, MD1093715310
- Zaaira Ahmad, MDSalisbury, MD1154591964
- Ishrat Ahmed, MDBaltimore, MD1659828432
- Esen Akpek, M.D.Baltimore, MD1851356943
Common questions
What is Richard Alan Gruen, M.D.'s NPI number?
Richard Alan Gruen, M.D.'s National Provider Identifier (NPI) is 1043221088, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Alan Gruen, M.D. located?
The NPPES record lists a practice address at 10 Crossroads Drive, Owings Mills, MD, 21117. Phone: (410) 654-5700. Providers update this record themselves, so call before visiting.
How can I verify Richard Alan Gruen, M.D.'s license?
NPPES lists Maryland license number D0025907, 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 Richard Alan Gruen, M.D. prescribe under Medicare Part D?
In 2024, Richard Alan Gruen, M.D. had 1,772 Medicare Part D claims for 380 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Richard Alan Gruen, M.D.'s MIPS final score?
The 2023 MIPS final score is 66.8 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.