Michael Cruz, MD, MAS
NPI 1265851133 · Endocrinology, Diabetes & Metabolism Physician · Chula Vista, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Cruz, MD, MAS is a Endocrinology, Diabetes & Metabolism Physician provider in Chula Vista, CA (NPI 1265851133).
Provider details
- NPI number
- 1265851133
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MAS
- Sex
- Male
- Sole proprietor
- Yes
- License
- A138772 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
88 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 88 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 175 | 48 |
| Empagliflozinbrand: Jardiance | 98 | 36 |
| Atorvastatin Calcium | 56 | 25 |
| Dulaglutidebrand: Trulicity | 54 | 23 |
| Levothyroxine Sodium | 52 | 19 |
| Insulin Glargine,hum.rec.anlogbrand: Toujeo Max Solostar | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$71 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-08
- Last updated
- 2019-11-15
Frequently asked questions
- What is Michael Cruz's NPI number?
- Michael Cruz's National Provider Identifier (NPI) is 1265851133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Cruz's specialty?
- Michael Cruz is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Cruz located?
- Michael Cruz's practice location on file with NPPES is 525 Third Ave, Chula Vista, CA 91910-5616.
- What is Michael Cruz's phone number?
- The practice phone number listed in the NPPES registry for Michael Cruz is (858) 499-2600.
- Does Michael Cruz accept Medicare?
- Michael Cruz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Cruz's NPI active?
- Yes — Michael Cruz's NPI (1265851133) is active in the NPPES registry as of the last update on 2019-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.