DIANA M. GUERRA MD
NPI 1023200623
Internal Medicine - Critical Care Medicine in Sugar Land, TX

Active since August 16, 2007PECOS EnrolledAccepts Medicare Assignment
16811 SOUTHWEST FWY STE 300, SUGAR LAND, TX 77479(346) 874-3458 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 12, 2026, Feb 4, 2026, Jan 30, 2026 and 3 more (6 updates tracked since 2016).

About Diana M. Guerra Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA M. GUERRA MD (NPI 1023200623) is an individual critical care medicine provider in Sugar Land, Texas, licensed in Texas (P2864) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and maintains a secondary practice location in College Station.

NPPES Registry Identity

NPI1023200623
Entity TypeIndividualFemale
Primary Taxonomy207RC0200X
Provider Legal NameDIANA M. GUERRACredential: MD
Location Address16811 SOUTHWEST FWY STE 300Sugar Land, TX 77479-4728
Mailing Address16811 Southwest Fwy Ste 300Sugar Land, TX 77479-4728 · (346) 874-3458
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateAugust 16, 2007
Last NPPES UpdateMarch 12, 20266 updates tracked since enumeration
NPPES CertifiedMarch 12, 2026
NPI 1023200623 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License Licensed in TX · P2864
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedAnesthesiologyTaxonomy 207L00000X · License P2864 (TX)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License P2864 (TX)
16811 SOUTHWEST FWY STE 300, Sugar Land, TX 77479

Secondary Practice Location 1

Location 1700 Scott and White DrCollege Station, TX 77845-6441 · Phone (979) 207-0100 · Fax (979) 207-2161

Other Identifiers 2

Medicaid299091308TX
Other8FT835TX · Blue Cross Blue Shield

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Diana M. Guerra Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739344680
PECOS Enrollment IDI20120627000766
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
495 services183 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
17 services14 patients
Emergent insertion of breathing tube into windpipe using an endoscope 31500
This is a procedure where a thin tube is inserted into your windpipe to aid in breathing. It's done in emergency situations, using an endoscope, a tool with a light and camera, to ensure correct placement.
16 services16 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450358
Location6565 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Houston Methodist Sugarland Hospital

Acute Care Hospitals · Sugar Land, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450820
Location16655 Southwest FreewaySugar Land, TX 77479 · Fort Bend County
Emergency services Birthing friendly

Baylor Scott & White Medical Center- College Stati

Acute Care Hospitals · College Station, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670088
Location700 Scott & White DriveCollege Station, TX 77845 · Brazos County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77479 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Rheumatology)
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Specialist
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Hospitalist
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Hospitalist
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Internal Medicine
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Hospitalist
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Hospitalist
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479
Internal Medicine (Critical Care Medicine)
16811 SOUTHWEST FWY STE 300
SUGAR LAND, TX 77479

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Guerra's NPI number?

The NPI number for Diana Guerra is 1023200623. It was assigned to this individual provider in the NPPES registry on August 16, 2007.

Where is Diana Guerra located?

Diana Guerra practices at 16811 Southwest Fwy Ste 300, Sugar Land, TX 77479. The listed phone number is (346) 874-3458.

What is Diana Guerra's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Diana Guerra enrolled in Medicare?

Yes. Diana Guerra is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Diana Guerra accept?

Health plans from Blue Cross and Blue Shield of Texas, Community Health Choice, Molina Healthcare and WellPoint list Diana Guerra as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Diana Guerra affiliated with any hospitals?

According to CMS data, Diana Guerra is affiliated with Houston Methodist Hospital, Houston Methodist Sugarland Hospital and Baylor Scott & White Medical Center- College Stati.

When was this NPI record last updated?

The NPPES record for Diana Guerra was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.