Tanya Dam, DO
NPI 1104105030 · Gastroenterology Physician · Modesto, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tanya Dam, DO is a Gastroenterology Physician provider in Modesto, CA (NPI 1104105030).
Provider details
- NPI number
- 1104105030
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A12410 (CA)
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
14 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
689 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 | 129 | $78 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 126 | $133 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 83 | $129 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 67 | $246 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 58 | $128 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 164 | 68 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 89 | 88 |
| Pantoprazole Sodium | 82 | 31 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 57 | 54 |
| Dicyclomine Hcl | 43 | 19 |
| Linaclotidebrand: Linzess | 40 | 11 |
| Peg3350/Sod Sulf,bicarb,cl/Kcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$156 across 2 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
- 2011-08-09
- Last updated
- 2016-08-08
Frequently asked questions
- What is Tanya Dam's NPI number?
- Tanya Dam's National Provider Identifier (NPI) is 1104105030, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tanya Dam's specialty?
- Tanya Dam is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Tanya Dam located?
- Tanya Dam's practice location on file with NPPES is 1541 Florida Ave, Modesto, CA 95350-4429.
- What is Tanya Dam's phone number?
- The practice phone number listed in the NPPES registry for Tanya Dam is (209) 577-3388.
- Does Tanya Dam accept Medicare?
- Tanya Dam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tanya Dam's NPI active?
- Yes — Tanya Dam's NPI (1104105030) is active in the NPPES registry as of the last update on 2016-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.