NPPES file of Aug 9, 2026

Homa Timlin, MD

Rheumatology Physician · Baltimore, MD

Homa Timlin, MD is a rheumatology physician with a practice address in Baltimore, Maryland, and NPI 1235460866, issued on Jan 21, 2010. Check the license (Maryland D78311, 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
1235460866
Name
Homa Timlin
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
D78311 MD
Self-reported in NPPES; status is on the state search
Practice location
5501 Hopkins Bayview Cir, Baltimore, MD 21224
Phone
(410) 550-7716
Enumerated
Jan 21, 2010
Record last updated
May 28, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(410) 550-1033
Medicaid ID
084352100 MD
Medicare enrollment
Enrolled (PECOS I20141031001890); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
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 5501 Hopkins Bayview Cir

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

  1. Newton Adkinson, M.D.Allergy Physician1619930393
  2. Antoine Azar, M.D.Allergy & Immunology (Internal Medicine) Physician1811029242
  3. Ryan Belecanech, MDCritical Care Medicine (Internal Medicine) Physician1821452905
  4. Michele Bellantoni, M.D.Geriatric Medicine (Internal Medicine) Physician1275598427
  5. Richard Bennett, M.D.Internal Medicine Physician1184680589
  6. Laura Cappelli, M.D.Rheumatology Physician1225273840

Verify Homa Timlin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D78311
    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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82% fewer Medicare Part D claims than the average rheumatology physician in 2024

355 Medicare Part D claims for 63 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Homa Timlin355
  2. Specialty average1,978

Most prescribed

  1. Hydroxychloroquine Sulfate165 claims
  2. Mycophenolate Mofetil32 claims
  3. Benlysta25 claims
  4. Prednisone25 claims
  5. Famotidine24 claims
  6. Lupkynis16 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): 74.4 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.

  1. Qualityout of 100 · 30% of the final score64.7
  2. Costout of 100 · 30%52.4
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Johns Hopkins UniversityBaltimore, MD

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

Homa Timlin among 214 rheumatology physician records in Maryland

Homa Timlin, MD is one of 214 rheumatology physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 71% of them.

  • NPI issued2010 · 71% of these records are older, 25% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1993 · median 2001 among the 132 with a school on file
  • Record last updated2015 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Maryland

There are 214 rheumatology physician records in Maryland.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Brendan Antiochos, M.D.Baltimore, MD 212241174799092
  2. Alan Baer, MDBaltimore, MD 212241730155607
  3. Clifton BinghamBaltimore, MD 212241972569655
  4. Laura Cappelli, M.D.Baltimore, MD 212241225273840
  5. Miriam Cohen, M.D.Baltimore, MD 212241548291719
  6. Brendan DenvirBaltimore, MD 212241811517071
  7. Timothy Kaniecki, MDBaltimore, MD 212241063070928
  8. Rebecca Manno, M.D.Baltimore, MD 212241871717652

Common questions

What is Homa Timlin, MD's NPI number?

Homa Timlin, MD's National Provider Identifier (NPI) is 1235460866, issued on Jan 21, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Homa Timlin, MD located?

The NPPES record lists a practice address at 5501 Hopkins Bayview Cir, Baltimore, MD, 21224. Phone: (410) 550-7716. Providers update this record themselves, so call before visiting.

How can I verify Homa Timlin, MD's license?

NPPES lists Maryland license number D78311, 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 Homa Timlin, MD prescribe under Medicare Part D?

In 2024, Homa Timlin, MD had 355 Medicare Part D claims for 63 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is Homa Timlin, MD's MIPS final score?

The 2023 MIPS final score is 74.4 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.