Andrew Charles Warren, M.D.
Psychiatry Physician · Baltimore, MD
Andrew Charles Warren, M.D. is a psychiatry physician with a practice address in Baltimore, Maryland, and NPI 1730287954, issued on Sep 20, 2006. Check the license (Maryland D0033804, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Andrew Charles Warren
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- D0033804 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
- Sep 20, 2006
- 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 I20101014000158); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
Also registered at 6501 N Charles St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Andrew Charles Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0033804Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.1 times the Medicare Part D claims of the average psychiatry physician in 2024
7,070 Medicare Part D claims for 266 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Risperidone750 claims
- Quetiapine Fumarate524 claims
- Divalproex Sodium434 claims
- Clonazepam384 claims
- Fluoxetine Hcl358 claims
- Trazodone Hcl356 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $64.88
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sheppard Pratt Physicians PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Charles Warren among 1,451 psychiatry physician records in Maryland
Andrew Charles Warren, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated1980 · 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.
All 1,451 in Maryland → Every provider in Baltimore → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- David Arnold, M.D.Baltimore, MD 212041700852084
- Maurice Bachawati, M.D.Baltimore, MD 212041366425779
- Nicola Cascella, M.DBaltimore, MD 212041427007681
- Coquilla Cross, MDTowson, MD 212041235197013
- Andrew Feinberg, M.D.Towson, MD 212041962432062
- Laura Gaffney, M.D.Towson, MD 212041215973441
- Oscar Galvis, M.D.Towson, MD 212041275517567
- David KaufmanTowson, MD 212041013956358
Common questions
What is Andrew Charles Warren, M.D.'s NPI number?
Andrew Charles Warren, M.D.'s National Provider Identifier (NPI) is 1730287954, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Charles Warren, M.D. 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 Andrew Charles Warren, M.D.'s license?
NPPES lists Maryland license number D0033804, 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 Andrew Charles Warren, M.D. prescribe under Medicare Part D?
In 2024, Andrew Charles Warren, M.D. had 7,070 Medicare Part D claims for 266 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Andrew Charles Warren, M.D.'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.