Adrian Klein, M.D.
NPI 1851825061 · Anesthesiology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adrian Klein, M.D. is a Anesthesiology Physician provider in San Diego, CA (NPI 1851825061).
Provider details
- NPI number
- 1851825061
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A171518 (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
9 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
138 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 29 | $140 |
| Ultrasonic Guidance for Needle Placement76942 | 25 | $30 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 22 | $181 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 15 | $127 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 14 | $45 |
| Anesthesia for Lens Surgery00142 | 11 | $127 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-13
- Last updated
- 2021-07-19
- Certified
- 2021-07-19
Frequently asked questions
- What is Adrian Klein's NPI number?
- Adrian Klein's National Provider Identifier (NPI) is 1851825061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adrian Klein's specialty?
- Adrian Klein is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Adrian Klein located?
- Adrian Klein's practice location on file with NPPES is 3626 Ruffin Rd, San Diego, CA 92123-1810.
- What is Adrian Klein's phone number?
- The practice phone number listed in the NPPES registry for Adrian Klein is (858) 565-9666.
- Does Adrian Klein accept Medicare?
- Adrian Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adrian Klein's NPI active?
- Yes — Adrian Klein's NPI (1851825061) is active in the NPPES registry as of the last update on 2021-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.