Joseph Kretschmar, M.D.
NPI 1699763649 · Gastroenterology Physician · Greeneville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Kretschmar, M.D. is a Gastroenterology Physician provider in Greeneville, TN (NPI 1699763649).
Provider details
- NPI number
- 1699763649
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 45714 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,103 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 247 | $129 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 218 | $67 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 146 | $226 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 125 | $75 |
| Insertion of Guide Wire With Dilation of Esophagus Using a Flexible Endoscope43248 | 84 | $117 |
| 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 57 | 38 |
| Metronidazole | 32 | 32 |
| Doxycycline Hyclate | 31 | 31 |
| Famotidine | 25 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$154 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 438 E Vann RdSuite 202Greeneville, TN 37743-7202Phone: (423) 278-1703Fax: (423) 278-1712
Registry dates
- Enumerated
- 2005-10-12
- Last updated
- 2021-06-09
- Certified
- 2021-06-09
Frequently asked questions
- What is Joseph Kretschmar's NPI number?
- Joseph Kretschmar's National Provider Identifier (NPI) is 1699763649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Kretschmar's specialty?
- Joseph Kretschmar is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Kretschmar located?
- Joseph Kretschmar's practice location on file with NPPES is 1406 Tusculum Blvd Ste 1200, Greeneville, TN 37745-4341.
- What is Joseph Kretschmar's phone number?
- The practice phone number listed in the NPPES registry for Joseph Kretschmar is (423) 787-6370.
- Does Joseph Kretschmar accept Medicare?
- Joseph Kretschmar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Kretschmar's NPI active?
- Yes — Joseph Kretschmar's NPI (1699763649) is active in the NPPES registry as of the last update on 2021-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.