IndividualActiveAccepts Medicare

Garwen Chen, MD

NPI 1972959617 · Psychiatry Physician · Saint Louis, MO

Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Provider details

NPI number: 1972959617
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: 52612 (KY)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 2020042681 (MO)
Allopathic & Osteopathic Physicians
Psychiatry Physician2084P0800XLicense 52612 (KY)
Allopathic & Osteopathic Physicians
Psychiatry Physician2084P0800XLicense 37435 (OK)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(69/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
10 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
4 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
378 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	227	$75
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	57	$164
Hospital Discharge Day Management, More Than 30 Minutes99239	56	$109
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	38	$111

Typical Medicare-allowed amounts for these services range $75–$164 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Olanzapine	28	15
Levothyroxine Sodium	28	—
Trazodone Hcl	24	14
Mirtazapine	22	17
Atorvastatin Calcium	18	—
Sertraline Hcl	18	—
Pantoprazole Sodium	18

Practice location

10018 Kennerly Rd

Saint Louis, MO 63128-2106

Phone: (314) 525-7275

Street-level locationGet directions

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Mailing address