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Edit this profileAt a glance
- 4701 Towne Centre, Suite 104, Saginaw, MI 48604
About Dr. Heinzelmann
Mark J. Heinzelmann, MD practices colon & rectal surgery in Saginaw, MI. Mark is also listed as specializing in specialist. According to Medicare claims data, Mark cared for 208 Medicare patients across 208 services. The services billed most often include diagnostic exam of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare, and colorectal cancer screening; colonoscopy on individual at high risk. The provider's National Provider Identifier (NPI) is 1013005578.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (989) 790-1390
- Email not available
Practice Locations
4701 TOWNE CENTRE, SUITE 104
Saginaw, MI 48604
Conditions Commonly Evaluated or Treated
Within Colon and Rectal Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Anorectal conditions
- Rectal Ulcer
- Anal fistula
Anorectal disorders
- Anal Itching
- Anal Skin Tags
- Anal Stricture
- Perianal Hematoma
- Rectovaginal Fistula
Bowel disorders
- Bowel Blockage in Babies
- Constipation From Pain Medicine
- Difficulty Emptying Bowels
- Severely Enlarged Colon
- Twisted Bowel
- Chronic diarrhea
Bowel symptoms
- Diverticulosis
- Constipation
- Lower gastrointestinal bleeding
Cancer
- Precancerous Anal Cells
- Anal cancer
- Appendix cancer
- Inherited Cancer Risk
Colon conditions
- Inherited Colon Polyps
Inflammatory bowel disease
- Radiation Proctitis
- Ulcerative colitis
Inflammatory conditions
- Rectal Inflammation
Ostomy & bowel
Ostomy & surgical complications
- Stoma Problems
Pain
- Rectal Pain
- Tailbone pain
Pelvic disorders
- Bowel Endometriosis
Skin conditions
- Perianal Boils
Most searched conditions
- Anal fissures
- Colon cancer
- Crohn's disease
- Diverticulitis
- Hemorrhoids
Digestive emergencies
Infections
Infections & cysts
Pelvic floor & structure
Tumors & growths
Vascular & inflammatory
Procedures & services
Abdominal surgery
- Bowel Adhesion Removal
- Appendectomy
Anorectal procedures
- Anal Dilation
Bowel management
- Transanal Irrigation
Cancer surgery
- Complete Rectum and Anus Removal
- Heated Chemotherapy for Abdominal Cancer
- Low Anterior Resection
Diagnostic tests
- Endorectal Ultrasound
- J-Pouch Scope
- Rectal Exam with Scope
Diagnostics
- Defecography
- High-Resolution Anorectal Manometry
- High-Resolution Anoscopy
- Prostate Ultrasound
Digestive
Endoscopy & minimally invasive
- Colon polyp removal
- Flexible sigmoidoscopy
- Transanal Minimally Invasive Surgery
Excision & drainage
- Anal Skin Tag Removal
- Anal Wart Removal
- Drainage of anal abscess
- Pilonidal cyst surgery
Fistula procedures
- Seton Drain Placement
General surgery
Hemorrhoid treatments
- Hemorrhoid Injections
- Laser Hemorrhoid Treatment
- Rubber-band ligation of hemorrhoids
Infection & Microbiology Tests
Inflammatory bowel surgery
- Bowel-Sparing Surgery for Crohn's
Injections & pain relief
- Anal Sphincter Botox
Minimally invasive surgery
- Robotic Colon Surgery
Ostomy & bowel
- Ostomy bag fitting and care
- Ostomy leak troubleshooting
Ostomy surgery
- Colostomy Placement
- Ileostomy Surgery
- Parastomal Hernia Repair
- Stoma Revision
Pelvic therapy
- Pelvic Biofeedback Therapy
Reconstructive surgery
- J-Pouch Surgery
- Rectovaginal Fistula Repair
- Anal Sphincter Repair
- Ostomy reversal
Wound care
- Stoma Site Marking Before Surgery
Most searched procedures
- Bowel resection
- Colonoscopy
- Fistula repair
- Hemorrhoid removal
Cancer screening
Digestive health
Pelvic floor & prolapse
Therapy & rehabilitation
Procedures Most Often Billed to Medicare
208 services · 208 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
85 | More than most peers in Colon & Rectal Surgery |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
66 | More often than most peers in Colon & Rectal Surgery |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
38 | More often than most peers in Colon & Rectal Surgery |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
19 | As often as other peers in Colon & Rectal Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other colorectal surgeons in Saginaw 4
Same specialty, same city.
Also performs Diagnostic exam of large bowel using a flexible endoscope 6
Providers in MI who bill this service to Medicare most often.
Common questions
What is Dr. Heinzelmann's specialty?
Dr. Heinzelmann is a colorectal surgeon in Saginaw, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
Where can I find Dr. Heinzelmann?
Dr. Heinzelmann is listed at 4701 Towne Centre, Suite 104, Saginaw, MI 48604. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Heinzelmann?
The number on file is (989) 790-1390. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Heinzelmann's NPI number?
Dr. Heinzelmann's National Provider Identifier is 1013005578. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Heinzelmann been practicing?
Dr. Heinzelmann has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Heinzelmann known for?
According to Medicare billing data, Dr. Heinzelmann performs procedures including diagnostic exam of large bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Heinzelmann confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Heinzelmann. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.