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DR. ANDREW CHARLES WARREN M.D.
NPI 1730287954
Psychiatry & Neurology - Psychiatry in Baltimore, MD

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment
84.77/100
CMS Quality Rating
6501 N CHARLES ST, BALTIMORE, MD 21204(410) 938-3000(410) 938-3410 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Andrew Charles Warren M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ANDREW CHARLES WARREN M.D. (NPI 1730287954) is an individual psychiatry provider in Baltimore, Maryland, licensed in Maryland (D0033804) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Greater Baltimore Medical Center, and is a graduate of Other (1980).

NPPES Registry Identity

NPI1730287954
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ANDREW CHARLES WARRENCredential: M.D.
Location Address6501 N CHARLES STBaltimore, MD 21204-6819
Mailing Address6501 N Charles StBaltimore, MD 21204-6819 · (410) 938-3000 · Fax (410) 938-3410
Phone(410) 938-3000
Fax(410) 938-3410
Sole ProprietorNo
Medical School CMSOtherGraduated 1980
Enumeration DateSeptember 20, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1730287954 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MD · D0033804
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
6501 N CHARLES ST, Baltimore, MD 21204
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Other Identifiers 1

Medicare UPIND76827MD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Andrew Charles Warren M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719179340
PECOS Enrollment IDI20101014000158
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
742 services168 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
627 services69 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
315 services81 patients
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348
An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.
33 services14 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
29 services27 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
25 services25 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Greater Baltimore Medical Center

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210044
Location6701 North Charles StreetBaltimore, MD 21204 · Baltimore County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.44 typical visit price
range $60.73 – $183.44
Typical copayment $45.86 (range $15.18 – $45.86)
Most-billed visit code 99205
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.77/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality58.96
Promoting Interoperability77
Improvement Activities40
Cost92.79

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS VICTORIA DIANE WANK CCC-SLP
Speech-Language Pathologist
6501 N CHARLES ST
TOWSON, MD 21204
Baltimore County (410) 938-4411
KAMIYLAH LAWSON
Nurse Practitioner (Psychiatric/Mental Health)
6501 N CHARLES ST
TOWSON, MD 21204
Baltimore County (410) 938-3000
MRS. ASHLEY ANN LESTER PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000
DR. RICHARD JOSPH LOEWENSTEIN M.D.
Psychiatry & Neurology (Psychiatry)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-5075
MICHAEL J PRIESTER PHD
Psychologist (Clinical)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000
DR. SARA ANN MIX
Psychologist (Clinical)
6501 N CHARLES ST
TOWSON, MD 21204
Baltimore County (443) 881-2028
CAROLINE J COHEN LCSW-C
Social Worker (Clinical)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000
DOUGLAS M GARTRELL MD
Psychiatry & Neurology (Psychiatry)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Andrew Warren's NPI number?

The NPI number for Andrew Warren is 1730287954. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Andrew Warren located?

Andrew Warren practices at 6501 N Charles St, Baltimore, MD 21204. The listed phone number is (410) 938-3000.

What is Andrew Warren's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Andrew Warren enrolled in Medicare?

Yes. Andrew Warren is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Andrew Warren accept?

Health plans from Providence Health Plan list Andrew Warren as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Andrew Warren affiliated with any hospitals?

According to CMS data, Andrew Warren is affiliated with Greater Baltimore Medical Center.

When was this NPI record last updated?

The NPPES record for Andrew Warren was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.