Venkata Tammana, M.D.
NPI 1689833048 · Gastroenterology Physician · Cookeville, TN
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Venkata Tammana, M.D. is a Gastroenterology Physician provider in Cookeville, TN (NPI 1689833048).
Provider details
- NPI number
- 1689833048
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 50915 (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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
847 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 Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 156 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $119 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 109 | $79 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 97 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 92 | $83 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 476 | 160 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 145 | 143 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 106 | 104 |
| Omeprazole | 77 | 27 |
| Sucralfate | 71 | 39 |
| Linaclotidebrand: Linzess | 43 | 12 |
| Lactulose | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$647 across 22 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
Registry dates
- Enumerated
- 2008-06-02
- Last updated
- 2017-05-15
Frequently asked questions
- What is Venkata Tammana's NPI number?
- Venkata Tammana's National Provider Identifier (NPI) is 1689833048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Venkata Tammana's specialty?
- Venkata Tammana is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Venkata Tammana located?
- Venkata Tammana's practice location on file with NPPES is 438 N Whitney Ave, Cookeville, TN 38501-2455.
- What is Venkata Tammana's phone number?
- The practice phone number listed in the NPPES registry for Venkata Tammana is (931) 783-2616.
- Does Venkata Tammana accept Medicare?
- Venkata Tammana is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Venkata Tammana's NPI active?
- Yes — Venkata Tammana's NPI (1689833048) is active in the NPPES registry as of the last update on 2017-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.