Nathan Johnston
NPI 1619232113 · Psychiatry Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Johnston is a Psychiatry Physician provider in San Antonio, TX (NPI 1619232113).
Provider details
- NPI number
- 1619232113
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- Q6755 (TX)
Specialties & taxonomies
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
13 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
736 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) |
|---|---|---|
| Treatment Using Magnetic Field to Stimulate Nerve Cells in Brain, Subsequent Delivery and Management90868 | 326 | $189 |
| Office Or Other Outpatient Visit for the Evaluation and Management of an Established Patient That Requires the Supervision of a Physician Or Other Qualified Health Care Professional and Provision of Greater Than 56 Mg Esketamine Nasal Self-Administration,G2083 | 278 | $1,124 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 30 | $211 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $172 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Esketamine Hclbrand: Spravato | 134 | 13 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 27 | — |
| Clonazepam | 24 | — |
| Fluoxetine Hcl | 20 | — |
| Sertraline Hcl | 18 | — |
| Vortioxetine Hydrobromidebrand: Trintellix | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$59,286 across 96 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
- 2012-07-10
- Last updated
- 2026-02-03
- Certified
- 2026-02-03
Frequently asked questions
- What is Nathan Johnston's NPI number?
- Nathan Johnston's National Provider Identifier (NPI) is 1619232113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Johnston's specialty?
- Nathan Johnston is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Johnston located?
- Nathan Johnston's practice location on file with NPPES is 23119 W Interstate 10 Bldg 7, San Antonio, TX 78257-1767.
- What is Nathan Johnston's phone number?
- The practice phone number listed in the NPPES registry for Nathan Johnston is (210) 994-6336.
- Does Nathan Johnston accept Medicare?
- Nathan Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Johnston's NPI active?
- Yes — Nathan Johnston's NPI (1619232113) is active in the NPPES registry as of the last update on 2026-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.