Guillermo Cazares, MD
NPI 1851617658 · Family Medicine Physician · Odessa, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guillermo Cazares, MD is a Family Medicine Physician provider in Odessa, TX (NPI 1851617658).
Provider details
- NPI number
- 1851617658
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Research Study Specialist1744R1102X
Other Service Providers
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
285 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 149 | $115 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 91 | $168 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 45 | $68 |
Typical Medicare-allowed amounts for these services range $68–$168 (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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 55 | 55 |
| Prednisone | 28 | 27 |
| Meloxicam | 24 | 24 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 23 | 23 |
| Methylprednisolone | 21 | 21 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 20 | 20 |
| Methocarbamol |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-19
- Last updated
- 2019-03-25
Frequently asked questions
- What is Guillermo Cazares's NPI number?
- Guillermo Cazares's National Provider Identifier (NPI) is 1851617658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Cazares's specialty?
- Guillermo Cazares is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Guillermo Cazares located?
- Guillermo Cazares's practice location on file with NPPES is 701 W 5th St, Odessa, TX 79763-4206.
- What is Guillermo Cazares's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Cazares is (432) 703-5238.
- Does Guillermo Cazares accept Medicare?
- Guillermo Cazares is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guillermo Cazares's NPI active?
- Yes — Guillermo Cazares's NPI (1851617658) is active in the NPPES registry as of the last update on 2019-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.