John Otis, MD
NPI 1235154535 · Psychiatry Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Otis, MD is a Psychiatry Physician provider in La Jolla, CA (NPI 1235154535).
Provider details
- NPI number
- 1235154535
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G28506 (CA)
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
1,304 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 404 | $98 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 239 | $75 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 191 | $68 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 179 | $80 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 177 | $65 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 508 | 54 |
| Quetiapine Fumarate | 499 | 45 |
| Trazodone Hcl | 488 | 62 |
| Aripiprazole | 306 | 30 |
| Divalproex Sodium | 229 | 29 |
| Benztropine Mesylate | 185 | 20 |
| Oxcarbazepine | 162 | 16 |
| Buspirone Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2010-09-03
Frequently asked questions
- What is John Otis's NPI number?
- John Otis's National Provider Identifier (NPI) is 1235154535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Otis's specialty?
- John Otis is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Otis located?
- John Otis's practice location on file with NPPES is 4150 Regents Park Row, La Jolla, CA 92037-9124.
- What is John Otis's phone number?
- The practice phone number listed in the NPPES registry for John Otis is (858) 457-2180.
- Does John Otis accept Medicare?
- John Otis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Otis's NPI active?
- Yes — John Otis's NPI (1235154535) is active in the NPPES registry as of the last update on 2010-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.