Benjamin Chambers, M.D.
NPI 1255725511 · Psychiatry Physician · Austin, TX
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Chambers, M.D. is a Psychiatry Physician provider in Austin, TX (NPI 1255725511).
Provider details
- NPI number
- 1255725511
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- S2960 (TX)
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
11 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
218 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 | 103 | $134 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 62 | $75 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 36 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 17 | $178 |
Typical Medicare-allowed amounts for these services range $75–$178 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bupropion Hclbrand: Bupropion Xl | 38 |
| Lamotrigine | 24 |
| Vortioxetine Hydrobromidebrand: Trintellix | 21 |
| Escitalopram Oxalate | 20 |
| Clonazepam | 14 |
| Lorazepam | 13 |
| Trazodone Hcl | 12 |
| Buspirone Hcl | 12 |
| Sertraline Hcl | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-03-25
- Last updated
- 2020-02-12
- Certified
- 2020-02-12
Frequently asked questions
- What is Benjamin Chambers's NPI number?
- Benjamin Chambers's National Provider Identifier (NPI) is 1255725511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Chambers's specialty?
- Benjamin Chambers is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Chambers located?
- Benjamin Chambers's practice location on file with NPPES is 3501 Mills Ave, Austin, TX 78731-6309.
- What is Benjamin Chambers's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Chambers is (512) 324-2000.
- Does Benjamin Chambers accept Medicare?
- Benjamin Chambers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Chambers's NPI active?
- Yes — Benjamin Chambers's NPI (1255725511) is active in the NPPES registry as of the last update on 2020-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.