NPPES file of Aug 9, 2026

William Erwin Narrow, M.D.

Psychiatry Physician · Baltimore, MD

William Erwin Narrow, M.D. is a psychiatry physician with a practice address in Baltimore, Maryland, and NPI 1447583208, issued on Sep 11, 2009. Check the license (Maryland D0036824, 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
1447583208
Name
William Erwin Narrow
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
D0036824 MD
MD042890 DC
MD2015-0863 NM
Self-reported in NPPES; status is on the state search
Practice location
5500 E Lombard St, Baltimore, MD 21224
Phone
(410) 550-9618
Enumerated
Sep 11, 2009
Record last updated
Mar 21, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(410) 550-0112
Medicare enrollment
Enrolled (PECOS I20181102000255); may accept Medicare assignment
Medical or professional school
Temple University School Of Medicine, 1983
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 5500 E Lombard St

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

  1. Tiffany Adams, LCSW-CClinical Social Worker1184962912
  2. Heather Dougan, LCSW-CClinical Social Worker1457185449
  3. Catherine Dowling, LGPCMental Health Counselor1447925839
  4. Paramita Dutta RayStudent in an Organized Health Care Education/Training Program1215722640
  5. Christopher Hammond, M.D.Child & Adolescent Psychiatry Physician1023244316
  6. Malaka Harper, LCPCProfessional Counselor1659874527

Verify William Erwin Narrow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0036824
    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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1% more Medicare Part D claims than the average psychiatry physician in 2024

1,013 Medicare Part D claims for 47 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. William Narrow1,013
  2. Specialty average1,000

Most prescribed

  1. Aripiprazole70 claims
  2. Venlafaxine Hcl Er69 claims
  3. Duloxetine Hcl66 claims
  4. Benztropine Mesylate59 claims
  5. Trazodone Hcl57 claims
  6. Olanzapine46 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 UniversityLutherville, MD

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

William Erwin Narrow among 1,451 psychiatry physician records in Maryland

William Erwin Narrow, M.D. is one of 1,451 psychiatry physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.

  • NPI issued2009 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated1983 · median 2000 among the 525 with a school on file
  • Record last updated2019 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

497 psychiatry physician records list a practice address in Baltimore

They are 497 of the 35,183 NPPES records with a practice address in Baltimore, and 1,451 psychiatry physician records in Maryland.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Byung Ahn, MDBaltimore, MD 212241821097015
  2. Susan Bailey, M.D.Baltimore, MD 212241639134810
  3. Raman Chahal, M.D.Baltimore, MD 212241982653051
  4. Michael Fulop, M.D.Baltimore, MD 212241679589840
  5. Gerard Gallucci, M.D.Baltimore, MD 212241073556601
  6. Sharon Handel, M.D.Baltimore, MD 212241043269053
  7. William Howard, M.D.Baltimore, MD 212241598711491
  8. Mansoor Malik, M.D.Baltimore, MD 212241164464392

Common questions

What is William Erwin Narrow, M.D.'s NPI number?

William Erwin Narrow, M.D.'s National Provider Identifier (NPI) is 1447583208, issued on Sep 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is William Erwin Narrow, M.D. located?

The NPPES record lists a practice address at 5500 E Lombard St, Baltimore, MD, 21224. Phone: (410) 550-9618. Providers update this record themselves, so call before visiting.

How can I verify William Erwin Narrow, M.D.'s license?

NPPES lists Maryland license number D0036824, 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 William Erwin Narrow, M.D. prescribe under Medicare Part D?

In 2024, William Erwin Narrow, M.D. had 1,013 Medicare Part D claims for 47 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is William Erwin Narrow, M.D.'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.