Alexander Carlin, D.O.
NPI 1811429921 · Neurology Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Carlin, D.O. is a Neurology Physician provider in Berkeley, CA (NPI 1811429921).
Provider details
- NPI number
- 1811429921
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A17335 (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
879 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 277 | $131 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 185 | $192 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 167 | $87 |
| Telephone, Internet, Or Electronic Health Record Assessment and Management With Verbal and Written Report By Consulting Physician, 5-10 Minutes99446 | 48 | $20 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 44 | $64 |
| Critical Care, First 30-74 Minutes99291 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-28
- Last updated
- 2023-01-23
- Certified
- 2023-01-23
Frequently asked questions
- What is Alexander Carlin's NPI number?
- Alexander Carlin's National Provider Identifier (NPI) is 1811429921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Carlin's specialty?
- Alexander Carlin is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Carlin located?
- Alexander Carlin's practice location on file with NPPES is 2850 Telegraph Ave Ste 110, Berkeley, CA 94705-1159.
- What is Alexander Carlin's phone number?
- The practice phone number listed in the NPPES registry for Alexander Carlin is (510) 204-8440.
- Does Alexander Carlin accept Medicare?
- Alexander Carlin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Carlin's NPI active?
- Yes — Alexander Carlin's NPI (1811429921) is active in the NPPES registry as of the last update on 2023-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.