John Walling, DO
NPI 1073579512 · Gastroenterology Physician · East Lansing, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Walling, DO is a Gastroenterology Physician provider in East Lansing, MI (NPI 1073579512).
Provider details
- NPI number
- 1073579512
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101009749 (MI)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
422 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 96 | $241 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 56 | $238 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 46 | $80 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 38 | $83 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 | $125 |
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 |
|---|---|---|
| Omeprazole | 295 | 119 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 227 | 225 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 166 | 161 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 90 | 89 |
| Pantoprazole Sodium | 50 | 22 |
| Adalimumabbrand: Humira(cf) Pen | 45 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$670 across 29 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
- 2006-04-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Walling's NPI number?
- John Walling's National Provider Identifier (NPI) is 1073579512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Walling's specialty?
- John Walling is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Walling located?
- John Walling's practice location on file with NPPES is 1650 Ramblewood Dr, East Lansing, MI 48823-7396.
- What is John Walling's phone number?
- The practice phone number listed in the NPPES registry for John Walling is (517) 332-1200.
- Does John Walling accept Medicare?
- John Walling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Walling's NPI active?
- Yes — John Walling's NPI (1073579512) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.