Alexander Lang, MD
NPI 1124681358 · Psychiatry Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Lang, MD is a Psychiatry Physician provider in Oakland, CA (NPI 1124681358).
Provider details
- NPI number
- 1124681358
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 188223 (CA)
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 tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 31 | 14 |
| Escitalopram Oxalate | 29 | — |
| Lorazepam | 23 | 15 |
| Mirtazapine | 20 | — |
| Duloxetine Hcl | 16 | — |
| Clonazepam | 13 | — |
| Fluoxetine Hcl | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-04-14
- Last updated
- 2026-05-07
- Certified
- 2026-05-07
Frequently asked questions
- What is Alexander Lang's NPI number?
- Alexander Lang's National Provider Identifier (NPI) is 1124681358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Lang's specialty?
- Alexander Lang is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Lang located?
- Alexander Lang's practice location on file with NPPES is 3900 Broadway, Oakland, CA 94611-5616.
- What is Alexander Lang's phone number?
- The practice phone number listed in the NPPES registry for Alexander Lang is (510) 752-1075.
- Does Alexander Lang accept Medicare?
- Alexander Lang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Lang's NPI active?
- Yes — Alexander Lang's NPI (1124681358) is active in the NPPES registry as of the last update on 2026-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.