Dr. Michael Raphael Puff, MD

  • Greenville, MI
  • Gastroenterologist
NPI1265471957PAC ID6406751031
Medicare services, 2024
11
Medicare patients, 2024
25
Part D claims, 2024
60
Hospital affiliations
2
Industry payments
$389
Practice address
615 S Bower Street, Greenville, MI 48838
Practice phone
Call (616) 754-4691
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Corewell Health Greenville Hospital

Hospital · Greenville, Michigan

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Dr. Michael Raphael Puff is a gastroenterologist in Greenville, Michigan

Dr. Puff practices at Corewell Health Greenville Hospital in Greenville, Michigan, part of Corewell Health.

Dr. Puff's NPI, 1265471957, was assigned on June 6, 2006. Dr. Puff graduated from Wayne State University School of Medicine in 1984. Dr. Puff holds Michigan license 4301049022.

NPI and contact details
Medicare PAC ID
6406751031
NPI enumeration date
June 6, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(616) 754-4691
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Michael Raphael Puff practices at Corewell Health Greenville Hospital in Greenville, Michigan

Dr. Puff's primary practice is Corewell Health Greenville Hospital, at 615 S Bower Street, Greenville, MI 48838 in Montcalm County. The practice phone is (616) 754-4691.

Source: Dmand AI Affiliation Data

Dr. Michael Raphael Puff is affiliated with 2 sites of care and 1 medical group

Dr. Puff's primary practice is Corewell Health Greenville Hospital in Greenville, Michigan, part of Corewell Health. Dr. Puff is also affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. The medical group on file is Corewell Health Medical Group West.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Michael Raphael Puff's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Puff practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Corewell Health Greenville HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Michael Raphael Puff is one of 487 gastroenterologists in Michigan

Gastroenterology is Dr. Puff's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Puff is licensed in Michigan.

Specialties and state licenses

  • Gastroenterology, MichiganPrimaryLicense 4301049022 · taxonomy 207RG0100X

Gastroenterologists near Dr. Puff

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. Michael Raphael Puff billed Medicare for 11 services in 2024

CMS data shows 11 Medicare services from Dr. Puff across 1 procedure code in 2024, for 25 Medicare patients. Medicare paid $50 for them. Every service was in an office.

Medicare services, 202411
Medicare patients25
Paid by Medicare$50
Procedure codes1

Dr. Puff's Medicare services by type, 2021 to 2024

  • 2021
  • 2024
Other services
2021: 122024: 118%

Dr. Puff compared with the Michigan median for gastroenterologists, 2024

  • Dr. Puff
  • Michigan median
Medicare services
11vs 32497% below
Medicare patients
25vs 23089% below
Part D claims
38vs 42491% below

Medians across 487 gastroenterologists in Michigan with Dmand AI profiles that report each measure.

Dr. Puff'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.

See all procedures by Dr. Puff

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Michael Raphael Puff treated 25 Medicare patients in 2024, average age 73

CMS counts 25 Medicare patients who saw Dr. Puff in 2024. The largest group is 75 to 84, with 12 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.17, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Puff's median patient age at 60, with 57% women.

Medicare patients, 202425
Average age73
Average risk score1.17

Dr. Puff's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Puff's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%

Share of Medicare patients with each condition. A patient can have several.

Dr. Puff's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women57%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Michael Raphael Puff wrote 60 Medicare Part D claims in 2024

In 2024, Dr. Puff wrote 60 Medicare Part D claims for 53 patients. 67% of them were for generic drugs. CMS names the drug for 38 of them, across 1 drug with 11 or more claims each, at $954 in total drug cost. In 2021, CMS named 145 claims across 6 drugs.

Part D claims, 202460
Drugs named by CMS1
Total drug cost$954
Part D patients53

Dr. Puff's Part D claims by kind of drug, 2024

  • Generic40 claims67%
  • Brand-name20 claims33%

Dr. Puff'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.

Part D claims for drugs CMS names, 2021 to 2024

  • 2021
  • 2024
Claims for drugs CMS names
2021: 1452024: 3874%

Drugs named by CMS: 1 in 2024, 6 in 2021.

See all prescribing by Dr. Puff

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. Michael Raphael Puff ranks in the 51st percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Puff accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 22 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Puff, more than 51% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Puff ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
51st percentile22 procedures
Colonoscopy
42nd percentile12 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. Michael Raphael Puff received $389 in industry payments from 2016 to 2018

CMS Open Payments shows 11 general payments to Dr. Puff from 9 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. ERBE USA Inc paid the most, $125.

General payments to Dr. Puff by program year, 2016 to 2018

Companies that paid Dr. Puff the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Puff

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Michael Raphael Puff graduated from Wayne State University School of Medicine

Dr. Puff graduated from Wayne State University School of Medicine in 1984.

  1. Medical schoolWayne State University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Michael Raphael Puff's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Michael Raphael Puff

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. Michael Raphael Puff's NPI number?

Dr. Michael Raphael Puff's NPI number is 1265471957. It was assigned on June 6, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael Raphael Puff?

Dr. Michael Raphael Puff is a gastroenterologist in Greenville, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Michael Raphael Puff practice?

Dr. Puff practices at 615 S Bower Street, Greenville, MI 48838. Dr. Puff's primary practice is Corewell Health Greenville Hospital in Greenville, Michigan, part of Corewell Health.

What is Dr. Michael Raphael Puff's office phone number?

The practice phone on file for Dr. Puff is (616) 754-4691.

What is Dr. Michael Raphael Puff's medical license number?

Dr. Puff holds Michigan license 4301049022.

Which hospitals is Dr. Michael Raphael Puff affiliated with?

Dr. Puff practices at Corewell Health Greenville Hospital in Greenville, Michigan. Dr. Puff is also affiliated with Corewell Health Grand Rapids Hospitals - Butterworth.

What medical group is Dr. Michael Raphael Puff part of?

Dr. Puff is linked to Corewell Health Medical Group West.

Does Dr. Michael Raphael Puff accept Medicare?

Yes. CMS data shows Dr. Puff billed Medicare for 11 services in 2024, and Dr. Puff accepts Medicare assignment.

How many Medicare patients does Dr. Michael Raphael Puff see?

CMS counts 25 Medicare patients who saw Dr. Puff in 2024, with an average age of 73.

What services does Dr. Michael Raphael Puff bill to Medicare?

In 2024, Dr. Puff's most billed Medicare services were medicare service (G0500).

Show 4 more questionsShow fewer questions

Where did Dr. Michael Raphael Puff go to medical school?

Dr. Puff graduated from Wayne State University School of Medicine in 1984.

What drugs does Dr. Michael Raphael Puff prescribe most?

In 2024 Medicare Part D data, Dr. Puff's most prescribed drugs by claims were Peg 3350-Electrolyte.

Has Dr. Michael Raphael Puff received payments from drug or device companies?

CMS Open Payments shows $389 in general payments to Dr. Puff from 9 companies from 2016 to 2018. The largest total came from ERBE USA Inc.

How long has Dr. Michael Raphael Puff been practicing?

Dr. Puff graduated from medical school in 1984, 42 years ago.

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