Diana Guerra, MD
NPI 1023200623 · Critical Care Medicine (Internal Medicine) Physician · Sugar Land, TX
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Guerra, MD is a Critical Care Medicine (Internal Medicine) Physician provider in Sugar Land, TX (NPI 1023200623).
Provider details
- NPI number
- 1023200623
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- P2864 (TX)
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
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
528 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 495 | $203 |
| Critical Care, Each Additional 30 Minutes99292 | 17 | $102 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 16 | $134 |
Typical Medicare-allowed amounts for these services range $102–$203 (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.
Practice location
Mailing address
Additional practice locations (1)
- 700 Scott and White DrCollege Station, TX 77845-6441Phone: (979) 207-0100Fax: (979) 207-2161
Registry dates
- Enumerated
- 2007-08-16
- Last updated
- 2026-03-12
- Certified
- 2026-03-12
Frequently asked questions
- What is Diana Guerra's NPI number?
- Diana Guerra's National Provider Identifier (NPI) is 1023200623, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Guerra's specialty?
- Diana Guerra is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Guerra located?
- Diana Guerra's practice location on file with NPPES is 16811 Southwest Fwy Ste 300, Sugar Land, TX 77479-4728.
- What is Diana Guerra's phone number?
- The practice phone number listed in the NPPES registry for Diana Guerra is (346) 874-3458.
- Does Diana Guerra accept Medicare?
- Diana Guerra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Guerra's NPI active?
- Yes — Diana Guerra's NPI (1023200623) is active in the NPPES registry as of the last update on 2026-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.