Mark Neahring, MD
NPI 1043574312 · Psychiatry Physician · Evanston, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Neahring, MD is a Psychiatry Physician provider in Evanston, IL (NPI 1043574312).
Provider details
- NPI number
- 1043574312
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036136489 (IL)
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
13 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
100 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, 30 Minutes90833 | 50 | $72 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 35 | $176 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 15 | $181 |
Typical Medicare-allowed amounts for these services range $72–$181 (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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 78 | 23 |
| Quetiapine Fumarate | 78 | 13 |
| Gabapentin | 52 | — |
| Trazodone Hcl | 48 | 11 |
| Escitalopram Oxalate | 32 | — |
| Fluoxetine Hcl | 30 | — |
| Bupropion Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-01
- Last updated
- 2021-12-23
- Certified
- 2021-12-23
Frequently asked questions
- What is Mark Neahring's NPI number?
- Mark Neahring's National Provider Identifier (NPI) is 1043574312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Neahring's specialty?
- Mark Neahring is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Neahring located?
- Mark Neahring's practice location on file with NPPES is 2650 Ridge Ave Ste 1223, Evanston, IL 60201-1700.
- What is Mark Neahring's phone number?
- The practice phone number listed in the NPPES registry for Mark Neahring is (847) 570-2040.
- Does Mark Neahring accept Medicare?
- Mark Neahring is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Neahring's NPI active?
- Yes — Mark Neahring's NPI (1043574312) is active in the NPPES registry as of the last update on 2021-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.