Katherine Johnson, MD
NPI 1942400924 · Psychiatry Physician · Maywood, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Johnson, MD is a Psychiatry Physician provider in Maywood, IL (NPI 1942400924).
Provider details
- NPI number
- 1942400924
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2011-00519 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
146 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 | 84 | $99 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 32 | $66 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 30 | $83 |
Typical Medicare-allowed amounts for these services range $66–$99 (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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 60 | 18 |
| Desvenlafaxine Succinatebrand: Desvenlafaxine Succinate Er | 41 | 11 |
| Quetiapine Fumarate | 39 | — |
| Vortioxetine Hydrobromidebrand: Trintellix | 38 | — |
| Alprazolam | 36 | — |
| Lorazepam | 36 | — |
| Clonazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$71 across 4 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
Registry dates
- Enumerated
- 2007-07-19
- Last updated
- 2021-04-12
- Certified
- 2021-04-12
Frequently asked questions
- What is Katherine Johnson's NPI number?
- Katherine Johnson's National Provider Identifier (NPI) is 1942400924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Johnson's specialty?
- Katherine Johnson is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Johnson located?
- Katherine Johnson's practice location on file with NPPES is 2160 S 1st Ave, Maywood, IL 60153-3328.
- What is Katherine Johnson's phone number?
- The practice phone number listed in the NPPES registry for Katherine Johnson is (708) 216-9000.
- Does Katherine Johnson accept Medicare?
- Katherine Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Johnson's NPI active?
- Yes — Katherine Johnson's NPI (1942400924) is active in the NPPES registry as of the last update on 2021-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.