Mark Chalem, MD
NPI 1083830848 · Psychiatry Physician · Spokane, WA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Chalem, MD is a Psychiatry Physician provider in Spokane, WA (NPI 1083830848).
Provider details
- NPI number
- 1083830848
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD00017775 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,137 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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 379 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 312 | $90 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 126 | $57 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 113 | $128 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 112 | $71 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 61 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 325 | 44 |
| Trazodone Hcl | 271 | 49 |
| Quetiapine Fumarate | 259 | 46 |
| Lamotrigine | 255 | 39 |
| Duloxetine Hcl | 232 | 33 |
| Gabapentin | 183 | 29 |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-18
- Last updated
- 2021-11-05
- Certified
- 2021-11-05
Frequently asked questions
- What is Mark Chalem's NPI number?
- Mark Chalem's National Provider Identifier (NPI) is 1083830848, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Chalem's specialty?
- Mark Chalem is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Chalem located?
- Mark Chalem's practice location on file with NPPES is 3515 S Lloyd Rd, Spokane, WA 99223-1163.
- What is Mark Chalem's phone number?
- The practice phone number listed in the NPPES registry for Mark Chalem is (509) 319-9599.
- Does Mark Chalem accept Medicare?
- Mark Chalem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Chalem's NPI active?
- Yes — Mark Chalem's NPI (1083830848) is active in the NPPES registry as of the last update on 2021-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.