NPPES file of Aug 9, 2026

Vassilis Eleftherios Koliatsos, MD

Psychiatry Physician · Baltimore, MD

Vassilis Eleftherios Koliatsos, MD is a psychiatry physician with a practice address in Baltimore, Maryland, and NPI 1679623045, issued on Jan 10, 2007. Check the license (Maryland D0047549, 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
1679623045
Name
Vassilis Eleftherios Koliatsos
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
D0047549 MD
Self-reported in NPPES; status is on the state search
Practice location
6501 N Charles St, Baltimore, MD 21204
Phone
(410) 938-3000
Enumerated
Jan 10, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(410) 938-3410
Medicare enrollment
Enrolled (PECOS I20100830000491); accepts 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 6501 N Charles St

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

  1. Scott Aaronson, M.D.Psychiatry Physician1376610790
  2. Somya Abubucker, MDPsychiatry Physician1033508361
  3. Francis Achanyileke, PMHNPPsychiatric/Mental Health Nurse Practitioner1407113285
  4. Dora AdjeiPsychiatry Physician1265239487
  5. Mohammed Akbar, M.D.Psychiatry Physician1225699978
  6. Adefolake AkinsanyaChild & Adolescent Psychiatry Physician1316353816

Verify Vassilis Eleftherios Koliatsos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0047549
    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% fewer Medicare Part D claims than the average psychiatry physician in 2024

993 Medicare Part D claims for 57 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Vassilis Koliatsos993
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate121 claims
  2. Divalproex Sodium90 claims
  3. Escitalopram Oxalate77 claims
  4. Propranolol Hcl Er57 claims
  5. Donepezil Hcl54 claims
  6. Oxcarbazepine49 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): 84.8 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 score59.0
  2. Costout of 100 · 30%92.8
  3. Promoting interoperabilityout of 100 · 25%77.0
  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. Sheppard Pratt Physicians PABaltimore, MD

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

Vassilis Eleftherios Koliatsos among 1,451 psychiatry physician records in Maryland

Vassilis Eleftherios Koliatsos, MD 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 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 38% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated1982 · median 2000 among the 525 with a school on file
  • Record last updated2007 · 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. David Arnold, M.D.Baltimore, MD 212041700852084
  2. Maurice Bachawati, M.D.Baltimore, MD 212041366425779
  3. Nicola Cascella, M.DBaltimore, MD 212041427007681
  4. Coquilla Cross, MDTowson, MD 212041235197013
  5. Andrew Feinberg, M.D.Towson, MD 212041962432062
  6. Laura Gaffney, M.D.Towson, MD 212041215973441
  7. Oscar Galvis, M.D.Towson, MD 212041275517567
  8. David KaufmanTowson, MD 212041013956358

Common questions

What is Vassilis Eleftherios Koliatsos, MD's NPI number?

Vassilis Eleftherios Koliatsos, MD's National Provider Identifier (NPI) is 1679623045, issued on Jan 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Vassilis Eleftherios Koliatsos, MD located?

The NPPES record lists a practice address at 6501 N Charles St, Baltimore, MD, 21204. Phone: (410) 938-3000. Providers update this record themselves, so call before visiting.

How can I verify Vassilis Eleftherios Koliatsos, MD's license?

NPPES lists Maryland license number D0047549, 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 Vassilis Eleftherios Koliatsos, MD prescribe under Medicare Part D?

In 2024, Vassilis Eleftherios Koliatsos, MD had 993 Medicare Part D claims for 57 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Vassilis Eleftherios Koliatsos, MD's MIPS final score?

The 2023 MIPS final score is 84.8 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.