NPPES file of Aug 9, 2026

Louis E. Kopolow, M.D.

Psychiatry Physician · Gaithersburg, MD

Louis E. Kopolow, M.D. is a psychiatry physician with a practice address in Gaithersburg, Maryland, and NPI 1164428694, issued on Jun 21, 2005. Check the license (Maryland D0016788, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164428694
Name
Louis E. Kopolow
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
D0016788 MD
Self-reported in NPPES; status is on the state search
Practice location
8915 Shady Grove CT, Gaithersburg, MD 20877
Phone
(301) 963-0060
Enumerated
Jun 21, 2005
Record last updated
Dec 27, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(301) 258-7482
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 8915 Shady Grove CT

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

  1. Sandra Ashoff, APRN, BCPsychiatric/Mental Health Registered Nurse1992792428
  2. Karen Phinney, APRNCPsychiatric/Mental Health Clinical Nurse Specialist1548268832
  3. Cynthia Turner-Graham, M.D.Psychiatry Physician1912903089
  4. Judy Tyson, PH.D.Psychologist1720086564

Verify Louis E. Kopolow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0016788    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

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91% fewer Medicare Part D claims than the average psychiatry physician in 2024

90 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Louis Kopolow90
  2. Specialty average1,000

Most prescribed

  1. Duloxetine Hcl16 claims
  2. Bupropion Xl13 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.

25 psychiatry physician records list a practice address in Gaithersburg

They are 25 of the 2,580 NPPES records with a practice address in Gaithersburg, and 1,451 psychiatry physician records in Maryland.

All 25 in Gaithersburg → All 1,451 in Maryland → Every provider in Gaithersburg →

Other psychiatry physician records in Maryland

  1. Hina Aamir, M.D.Aberdeen, MD1376777979
  2. Scott Aaronson, M.D.Baltimore, MD1376610790
  3. Archil Abashidze, MDGlen Burnie, MD1891717757
  4. Muhammad Abbas, M.D.Sykesville, MD1801898168
  5. Safiyyah Abdul Rahman, MDBaltimore, MD1669691416
  6. Eapen Abraham, M. D.Perry Point, MD1467415521
  7. Vinod AbrahamHollywood, MD1457438350
  8. Scott AbrahamsonHagerstown, MD1710515465
  9. Somya Abubucker, MDBaltimore, MD1033508361
  10. Elia Acevedo Diaz, M.DGaithersburg, MD1750720553

Common questions

What is Louis E. Kopolow, M.D.'s NPI number?

Louis E. Kopolow, M.D.'s National Provider Identifier (NPI) is 1164428694, issued on Jun 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Louis E. Kopolow, M.D. located?

The NPPES record lists a practice address at 8915 Shady Grove CT, Gaithersburg, MD, 20877. Phone: (301) 963-0060. Providers update this record themselves, so call before visiting.

How can I verify Louis E. Kopolow, M.D.'s license?

NPPES lists Maryland license number D0016788, 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 Louis E. Kopolow, M.D. prescribe under Medicare Part D?

In 2024, Louis E. Kopolow, M.D. had 90 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.