NPPES file of Aug 9, 2026

Robert Louis Handwerger, M.D.

Specialist · Annapolis, MD

Robert Louis Handwerger, M.D. is a specialist with a practice address in Annapolis, Maryland, and NPI 1669440475, issued on Mar 8, 2006. Check the license (Maryland D0008904, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669440475
Name
Robert Louis Handwerger
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
D0008904 MD
Self-reported in NPPES; status is on the state search
Practice location
600 Ridgely Ave, Annapolis, MD 21401
Phone
(410) 224-3614
Enumerated
Mar 8, 2006
Record last updated
Jul 13, 2026
Fax
(410) 224-5936
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 600 Ridgely Ave

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

  1. Molly Bartlett, CRNPSpecialist1326042094
  2. Margery Calhoun, PHDClinical Psychologist1922168137
  3. Juddson Chason, MDUrology Physician1376668228
  4. Aditya Chopra, MDInternal Medicine Physician1508850991
  5. Erin Connolly-Igoe, LCSW-CClinical Social Worker1770640328
  6. Bic Cung, M.D.Urology Physician1346476462

Verify Robert Louis Handwerger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license D0008904
    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
Find 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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Robert Louis Handwerger among 938 specialist records in Maryland

Robert Louis Handwerger, M.D. is one of 938 specialist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 17% of them.

  • NPI issued2006 · 17% of these records are older, 39% newer
  • In a Medicare fileNo · 36% of these records are
  • In the CMS Doctors and Clinicians fileNo · 23% of these records are
  • Record last updated2026 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 specialist records list a practice address in Annapolis

They are 41 of the 3,629 NPPES records with a practice address in Annapolis, and 938 specialist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 specialist records with the nearest ZIP codes

  1. Molly Bartlett, CRNPAnnapolis, MD 214011326042094
  2. Elizabeth D'Antonio, CRNPAnnapolis, MD 214011649275520
  3. Heather Herman, M.D.Annapolis, MD 214011073599924
  4. Raymond Herzinger, M.D.Annapolis, MD 214011962406777
  5. Kenneth Keys, M.D.Annapolis, MD 214011710962733
  6. Nicole Luecke, M.D.Annapolis, MD 214011306821020
  7. Gregory Mitchell, M.D., PAAnnapolis, MD 214011669475307
  8. Gilbert Mottla, M.D.Annapolis, MD 214011063407948

Common questions

What is Robert Louis Handwerger, M.D.'s NPI number?

Robert Louis Handwerger, M.D.'s National Provider Identifier (NPI) is 1669440475, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Louis Handwerger, M.D. located?

The NPPES record lists a practice address at 600 Ridgely Ave, Annapolis, MD, 21401. Phone: (410) 224-3614. Providers update this record themselves, so call before visiting.

How can I verify Robert Louis Handwerger, M.D.'s license?

NPPES lists Maryland license number D0008904, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.