Robert Graveline, M.D.
NPI 1336137306 · Gastroenterology Physician · Ames, IA
Robert Graveline, M.D. is a Gastroenterology Physician provider in Ames, IA (NPI 1336137306).
Provider details
- NPI number
- 1336137306
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 29795 (IA)
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
1,835 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) |
|---|---|---|
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 691 | $5 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 389 | $227 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 100 | $165 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 91 | $72 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235 | 73 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 514 | 500 |
| Omeprazole | 388 | 76 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 109 | 107 |
| Azathioprine | 65 | — |
| Nortriptyline Hcl | 65 | 16 |
| Balsalazide Disodium | 62 | 13 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 51 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-12
- Last updated
- 2025-06-04
- Certified
- 2025-06-04
Frequently asked questions
- What is Robert Graveline's NPI number?
- Robert Graveline's National Provider Identifier (NPI) is 1336137306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Graveline's specialty?
- Robert Graveline is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Graveline located?
- Robert Graveline's practice location on file with NPPES is 3008 Evergreen Cir, Ames, IA 50014-4516.
- What is Robert Graveline's phone number?
- The practice phone number listed in the NPPES registry for Robert Graveline is (515) 292-5555.
- Is Robert Graveline's NPI active?
- Yes — Robert Graveline's NPI (1336137306) is active in the NPPES registry as of the last update on 2025-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.