Timothy Rubin, MD
NPI 1801830856 · Gastroenterology Physician · Duluth, MN
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Rubin, MD is a Gastroenterology Physician provider in Duluth, MN (NPI 1801830856).
Provider details
- NPI number
- 1801830856
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37514 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
159 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 37 | $65 |
| Measurement of Liver Stiffness91200 | 27 | $10 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235 | 24 | $111 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 18 | $166 |
| Insertion of Guide Wire With Dilation of Esophagus Using a Flexible Endoscope43248 | 16 | $137 |
| 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 124 | 123 |
| Dicyclomine Hcl | 11 | — |
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2011-05-26
Frequently asked questions
- What is Timothy Rubin's NPI number?
- Timothy Rubin's National Provider Identifier (NPI) is 1801830856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Rubin's specialty?
- Timothy Rubin is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Rubin located?
- Timothy Rubin's practice location on file with NPPES is 400 E 3rd St, Duluth, MN 55805-1951.
- What is Timothy Rubin's phone number?
- The practice phone number listed in the NPPES registry for Timothy Rubin is (218) 786-8364.
- Does Timothy Rubin accept Medicare?
- Timothy Rubin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Rubin's NPI active?
- Yes — Timothy Rubin's NPI (1801830856) is active in the NPPES registry as of the last update on 2011-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.