John Christopher Tang, D.O.
NPI 1346458825 · Gastroenterology Physician · Fishers, IN
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Christopher Tang, D.O. is a Gastroenterology Physician provider in Fishers, IN (NPI 1346458825).
Provider details
- NPI number
- 1346458825
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101015998 (MI)
Specialties & taxonomies
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
19 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
183 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 61 | $226 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 48 | $76 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 22 | $84 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 17 | $73 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 13 | $77 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 74 | 21 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 55 | 53 |
| Pantoprazole Sodium | 49 | 13 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 35 | 34 |
| Famotidine | 26 | — |
| Azathioprine | 22 | — |
| Mesalamine | 20 | — |
Practice location
Mailing address
Additional practice locations (1)
- 1701 N Senate BlvdIndianapolis, IN 46202-1239Phone: (888) 484-3258
Registry dates
- Enumerated
- 2007-05-18
- Last updated
- 2025-03-13
- Certified
- 2025-03-13
Frequently asked questions
- What is John Christopher Tang's NPI number?
- John Christopher Tang's National Provider Identifier (NPI) is 1346458825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Christopher Tang's specialty?
- John Christopher Tang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Christopher Tang located?
- John Christopher Tang's practice location on file with NPPES is 13100 E 136th St Ste 3600, Fishers, IN 46037-9822.
- What is John Christopher Tang's phone number?
- The practice phone number listed in the NPPES registry for John Christopher Tang is (317) 944-0980.
- Does John Christopher Tang accept Medicare?
- John Christopher Tang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Christopher Tang's NPI active?
- Yes — John Christopher Tang's NPI (1346458825) is active in the NPPES registry as of the last update on 2025-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.