Douglas L. Heintzelman, MD

Medicare activity in 2024

Official CMS public-use data for Douglas L. Heintzelman, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. X-ray of chest, 1 view (71045)769 services
2. Ct scan of abdomen and pelvis with contrast (74177)172 services
3. Ct scan of abdomen and pelvis without contrast (74176)105 services
4. X-ray of chest, 2 views (71046)104 services
5. X-ray of abdomen, 1 view (74018)98 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis53%
• Ischemic heart disease49%
• Diabetes48%
• Chronic kidney disease48%

Hospitals where Douglas L. Heintzelman works

Medicare's Facility Affiliation Data lists Douglas L. Heintzelman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Baylor St. Luke's Medical CenterHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 450193
• St. Luke's Hospital at The VintageHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 670075
• St. Luke's Patients Medical CenterPasadena, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 670031
• St. Luke's Sugar Land HospitalSugar Land, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 670053
• St. Luke's The Woodlands HospitalThe Woodlands, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450862

Practice locations

Addresses where Douglas L. Heintzelman is enrolled with Medicare (CMS data updated October 2, 2026).

• 2231 Bay Haven WayLeague City, TX 77573 (805) 577‑2122
• 4551 Larimer St, Apt 301Dublin, OH 43017 (832) 355‑4112

Group practices

Medicare enrollment lists Douglas L. Heintzelman as a member of this group (CMS data updated October 2, 2026).

• Singleton Associates PA838 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Texas →

Other radiologists in League City

Clinicians with the same Medicare primary specialty in League City, TX — not a recommendation.

• Gary Horn, MD
• Renzo Rajebi, MD
• Douglas Hughes Jr., MD
• Umar Chaudhry, MD
• Jibi Thomas, MD

All radiologists in League City →

Other clinicians in Singleton Associates PA

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Danit Cunningham, MD
• Alaina E. Moore, MD
• Seth Obrien, MD
• Susan Pinero, MD
• Phan T. Huynh, MD
• Corey Area, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians