Thomas Hessling, M.D.
NPI 1972659191 · Psychiatry Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Hessling, M.D. is a Psychiatry Physician provider in San Diego, CA (NPI 1972659191).
Provider details
- NPI number
- 1972659191
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G39433 (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
821 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 457 | $100 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 364 | $67 |
Typical Medicare-allowed amounts for these services range $67–$100 (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 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 94 | 11 |
| Clozapine | 84 | — |
| Risperidone | 77 | — |
| Quetiapine Fumarate | 61 | — |
| Lorazepam | 49 | — |
| Benztropine Mesylate | 35 | — |
| Escitalopram Oxalate | 32 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2023-08-23
- Certified
- 2023-08-23
Frequently asked questions
- What is Thomas Hessling's NPI number?
- Thomas Hessling's National Provider Identifier (NPI) is 1972659191, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Hessling's specialty?
- Thomas Hessling is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Hessling located?
- Thomas Hessling's practice location on file with NPPES is 7850 Vista Hill Ave, San Diego, CA 92123-2717.
- What is Thomas Hessling's phone number?
- The practice phone number listed in the NPPES registry for Thomas Hessling is (619) 297-4241.
- Does Thomas Hessling accept Medicare?
- Thomas Hessling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Hessling's NPI active?
- Yes — Thomas Hessling's NPI (1972659191) is active in the NPPES registry as of the last update on 2023-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.