Henry Zelada Castro, MD
NPI 1417339540 · Endocrinology, Diabetes & Metabolism Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Henry Zelada Castro, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Santa Monica, CA (NPI 1417339540).
Provider details
- NPI number
- 1417339540
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125066137 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
423 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 | 204 | $122 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 142 | $178 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 50 | $77 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 15 | $177 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 | $132 |
Typical Medicare-allowed amounts for these services range $77–$178 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 46 | 16 |
| Tirzepatidebrand: Mounjaro | 44 | 17 |
| Empagliflozinbrand: Jardiance | 33 | — |
| Insulin Degludecbrand: Tresiba Flextouch U-100 | 25 | 12 |
| Atorvastatin Calcium | 24 | — |
| Metformin Hclbrand: Metformin Hcl Er | 19 |
Practice location
Mailing address
Additional practice locations (2)
- 2000 6th Ave SBirmingham, AL 35233-2110Phone: (205) 996-3636Fax: (205) 801-8798
- 4600 N Clarendon Ave Apt 812Chicago, IL 60640Phone: (312) 982-9253
Registry dates
- Enumerated
- 2015-06-25
- Last updated
- 2024-04-04
- Certified
- 2024-04-04
Frequently asked questions
- What is Henry Zelada Castro's NPI number?
- Henry Zelada Castro's National Provider Identifier (NPI) is 1417339540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Zelada Castro's specialty?
- Henry Zelada Castro is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Henry Zelada Castro located?
- Henry Zelada Castro's practice location on file with NPPES is 1245 16th St Ste 307, Santa Monica, CA 90404-1239.
- What is Henry Zelada Castro's phone number?
- The practice phone number listed in the NPPES registry for Henry Zelada Castro is (310) 899-7633.
- Does Henry Zelada Castro accept Medicare?
- Henry Zelada Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Henry Zelada Castro's NPI active?
- Yes — Henry Zelada Castro's NPI (1417339540) is active in the NPPES registry as of the last update on 2024-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.