David Marshall, MD
NPI 1508387598 · Psychiatry Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Marshall, MD is a Psychiatry Physician provider in Grand Rapids, MI (NPI 1508387598).
Provider details
- NPI number
- 1508387598
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301503839 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
416 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 223 | $121 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 148 | $68 |
| Assessment of Emotional Or Behavioral Problems96127 | 30 | $4 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 15 | $196 |
Typical Medicare-allowed amounts for these services range $4–$196 (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 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buspirone Hcl | 346 | 88 |
| Trazodone Hcl | 316 | 97 |
| Bupropion Hclbrand: Bupropion Xl | 316 | 77 |
| Escitalopram Oxalate | 212 | 64 |
| Quetiapine Fumarate | 195 | 44 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 167 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$189 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 235 Wealthy St SeGrand Rapids, MI 49503-5247Phone: (616) 840-8668Fax: (616) 840-9762
Registry dates
- Enumerated
- 2017-06-29
- Last updated
- 2025-11-26
- Certified
- 2025-11-26
Frequently asked questions
- What is David Marshall's NPI number?
- David Marshall's National Provider Identifier (NPI) is 1508387598, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Marshall's specialty?
- David Marshall is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is David Marshall located?
- David Marshall's practice location on file with NPPES is 2750 E Beltline Ave Ne Fl 3, Grand Rapids, MI 49525-8614.
- What is David Marshall's phone number?
- The practice phone number listed in the NPPES registry for David Marshall is (616) 447-5820.
- Does David Marshall accept Medicare?
- David Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Marshall's NPI active?
- Yes — David Marshall's NPI (1508387598) is active in the NPPES registry as of the last update on 2025-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.