Physician Profile
Unclaimed ProfileAbout HOLDERMAN
Based in Tacoma, WA, William H Holderman, M.D. is listed in the NPI registry under gastroenterology. William graduated from R Franklin University of Med & Sci/Chicago Medical School in 1987. According to Medicare claims data, William cared for 539 Medicare patients across 550 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (253) 272-8148
- Email not available
Practice Locations
3209 S 23RD ST STE. 340
Tacoma, WA 98405
Procedures Most Often Billed to Medicare
550 services · 539 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
88 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
83 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
52 |
| Insertion of guide wire with dilation of esophagus using a flexible endoscope | Procedure | 43248 |
28 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
22 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
77 |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
41 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
41 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
38 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
30 |
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.
Other gastroenterology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
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 gastroenterology specialists in Tacoma 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at R Franklin University of Med & Sci/Chicago Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at R Franklin University of Med & Sci/Chicago Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in WA who bill this service to Medicare most often.
Common questions
What does Dr. Holderman specialize in?
Dr. Holderman is a gastroenterology in Tacoma, WA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Holderman located?
Dr. Holderman is listed at 3209 S 23RD ST STE. 340, Tacoma, WA 98405. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Holderman's phone number?
The number on file is (253) 272-8148. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Holderman's NPI number?
Dr. Holderman's National Provider Identifier is 1346213956. 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
Where did Dr. Holderman go to medical school?
Dr. Holderman attended R Franklin University of Med & Sci/Chicago Medical School, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Holderman been practicing?
Dr. Holderman has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Holderman do most often?
According to Medicare billing data, Dr. Holderman performs procedures including biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Holderman confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Holderman. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.