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Dr. Margaret Jane Blayney, MD
NPI1629413018PAC ID8123269354
- Medicare services, 2024
- 265
- Medicare patients, 2024
- 262
- Part D claims, 2024
- 912
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
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Dr. Margaret Jane Blayney is a gastroenterologist in Ann Arbor, Michigan
Dr. Blayney practices at University Hospital in Ann Arbor, Michigan.
Dr. Blayney's NPI, 1629413018, was assigned on April 30, 2013. Dr. Blayney graduated from University of Michigan Medical School in 2013. Dr. Blayney holds Michigan license 4301500792.
NPI and contact details
- NPI
- 1629413018NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123269354
- NPI enumeration date
- April 30, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margaret Jane Blayney practices at University Hospital in Ann Arbor, Michigan
Dr. Blayney's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Margaret Jane Blayney is affiliated with 6 sites of care and 4 medical groups
Dr. Blayney's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Blayney is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dmand AI also links Dr. Blayney to 1 more hospital, 3 group practices and clinics and 3 medical groups, each named with a free account. Dr. Blayney's employer is on file too: a school & student health.
University HospitalPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Margaret Jane Blayney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Blayney practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margaret Jane Blayney is one of 487 gastroenterologists in Michigan
Gastroenterology is Dr. Blayney's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Blayney is licensed in Michigan.
Specialties and state licenses
- Gastroenterology, MichiganPrimary
Gastroenterologists near Dr. Blayney
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Margaret Jane Blayney billed Medicare for 265 services in 2024
CMS data shows 265 Medicare services from Dr. Blayney across 10 procedure codes in 2024, for 262 Medicare patients. Medicare paid $21,266 for them.
Medicare services, 2024265
Medicare patients262
Paid by Medicare$21,266
Procedure codes10
Dr. Blayney's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2472024: 13047%
- Surgery
- 2023: 1632024: 6262%
- Tests and treatments
- 2023: 452024: 487%
- Other services
- 2023: 02024: 25
Where Dr. Blayney's Medicare services took place, 2024
- In an office15558%
- In a facility11042%
Dr. Blayney compared with the Michigan median for gastroenterologists, 2024
- Dr. Blayney
- Michigan median
- Medicare services
- 265vs 32418% below
- Medicare patients
- 262vs 23014% above
- Part D claims
- 786vs 42485% above
Medians across 487 gastroenterologists in Michigan with Dmand AI profiles that report each measure.
Dr. Blayney's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Blayney and other gastroenterologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Margaret Jane Blayney treated 262 Medicare patients in 2024, average age 67
CMS counts 262 Medicare patients who saw Dr. Blayney in 2024. The largest group is 65 to 74, with 112 patients. 68% of them have high blood pressure, and 64% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.75, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Blayney's median patient age at 59, with 68% women.
Medicare patients, 2024262
Average age67
Average risk score1.75
Also on Medicaid21%
Dr. Blayney's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Blayney's Medicare patients by sex, 2024
- Women17165%
- Men9135%
Chronic conditions among Dr. Blayney's Medicare patients, 2024
- High blood pressure68%
- High cholesterol64%
- Arthritis42%
- Anxiety40%
- Mood disorders39%
- Depression36%
- Ischemic heart disease31%
- Diabetes25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Blayney's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Margaret Jane Blayney wrote 912 Medicare Part D claims in 2024
In 2024, Dr. Blayney wrote 912 Medicare Part D claims for 305 patients. 75% of them were for generic drugs. CMS names the drug for 786 of them, across 23 drugs with 11 or more claims each, at $214,769 in total drug cost. In 2023, CMS named 696 claims across 20 drugs.
Part D claims, 2024912
Drugs named by CMS23
Total drug cost$214,769
Part D patients305
Dr. Blayney's Part D claims by kind of drug, 2024
- Generic687 claims75%
- Brand-name225 claims25%
Dr. Blayney's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Blayney's Part D claims, 2024
- Antibiotics2%15 of 912 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6962024: 78613%
Drugs named by CMS: 23 in 2024, 20 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Margaret Jane Blayney ranks in the 58th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Blayney accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Blayney as offering telehealth. CMS counts 35 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Blayney, more than 58% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Blayney ranks in Medicare procedure volume
- Colonoscopy
- 57th percentile37 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 58th percentile35 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Margaret Jane Blayney has 1 publication on record
Dmand AI links 1 paper to Dr. Blayney in 2016. Dr. Blayney's most frequent co-author is David M. Aboulafia, MD.
Papers1
Dr. Blayney's most frequent co-authors
Recent publications by Dr. Blayney
See who Dr. Blayney researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Blayney works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Margaret Jane Blayney graduated from University of Michigan Medical School
Dr. Blayney graduated from University of Michigan Medical School in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Margaret Jane Blayney's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Margaret Jane Blayney
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Margaret Jane Blayney's NPI number?
Dr. Margaret Jane Blayney's NPI number is 1629413018. It was assigned on April 30, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Margaret Jane Blayney?
Dr. Margaret Jane Blayney is a gastroenterologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Margaret Jane Blayney practice?
Dr. Blayney practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Blayney's primary practice is University Hospital in Ann Arbor, Michigan. Dmand AI also links Dr. Blayney to 1 hospital, 3 group practices and clinics and 3 medical groups.
What is Dr. Margaret Jane Blayney's office phone number?
The practice phone on file for Dr. Blayney is (734) 936-4000.
What is Dr. Margaret Jane Blayney's medical license number?
Dr. Blayney holds Michigan license 4301500792.
Which hospitals is Dr. Margaret Jane Blayney affiliated with?
Dr. Blayney is affiliated with University Hospital. Dmand AI links Dr. Blayney to 1 more hospital.
What medical group is Dr. Margaret Jane Blayney part of?
Dr. Blayney is linked to University of Michigan Health. Dmand AI links Dr. Blayney to 3 more medical groups.
Does Dr. Margaret Jane Blayney accept Medicare?
Yes. CMS data shows Dr. Blayney billed Medicare for 265 services in 2024, and Dr. Blayney accepts Medicare assignment.
Does Dr. Margaret Jane Blayney offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Blayney as offering telehealth services.
How many Medicare patients does Dr. Margaret Jane Blayney see?
CMS counts 262 Medicare patients who saw Dr. Blayney in 2024, with an average age of 67.
Show 6 more questionsShow fewer questions
What services does Dr. Margaret Jane Blayney bill to Medicare?
In 2024, Dr. Blayney's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45385) and medicare service (G2211).
Where did Dr. Margaret Jane Blayney go to medical school?
Dr. Blayney graduated from University of Michigan Medical School in 2013.
What drugs does Dr. Margaret Jane Blayney prescribe most?
In 2024 Medicare Part D data, Dr. Blayney's most prescribed drugs by claims were Omeprazole, Peg 3350-Electrolyte and Pantoprazole Sodium.
How long has Dr. Margaret Jane Blayney been practicing?
Dr. Blayney graduated from medical school in 2013, 13 years ago.
Does Dr. Margaret Jane Blayney do research?
Dmand AI links 1 publication to Dr. Blayney.
Who does Dr. Margaret Jane Blayney publish with?
Dr. Blayney's most frequent co-authors are David M. Aboulafia, MD (1 shared paper).
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