Margaret Blayney, MD
NPI 1629413018 · Gastroenterology Physician · East Lansing, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Blayney, MD is a Gastroenterology Physician provider in East Lansing, MI (NPI 1629413018).
Provider details
- NPI number
- 1629413018
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301500792 (MI)
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
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
265 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 52 | $96 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 31 | $215 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $91 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 25 | $16 |
| Test for Tone and Sensation of Rectum and Anus91120 | 24 | $45 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 120 | 46 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 85 | 82 |
| Pantoprazole Sodium | 68 | 27 |
| Linaclotidebrand: Linzess | 61 | 21 |
| Buspirone Hcl | 43 | 11 |
| Prucalopride Succinatebrand: Motegrity | 43 | 14 |
| Colestipol Hcl | 37 |
Practice location
Mailing address
Additional practice locations (1)
- 1500 E Medical Center DrAnn Arbor, MI 48109-5000Phone: (734) 936-4000
Registry dates
- Enumerated
- 2013-04-30
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Margaret Blayney's NPI number?
- Margaret Blayney's National Provider Identifier (NPI) is 1629413018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Blayney's specialty?
- Margaret Blayney is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Blayney located?
- Margaret Blayney's practice location on file with NPPES is 1650 Ramblewood Dr Ste 100, East Lansing, MI 48823-7396.
- What is Margaret Blayney's phone number?
- The practice phone number listed in the NPPES registry for Margaret Blayney is (517) 332-1200.
- Does Margaret Blayney accept Medicare?
- Margaret Blayney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Blayney's NPI active?
- Yes — Margaret Blayney's NPI (1629413018) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.