Dr. Mary F. Chan, MD

  • Cadillac, MI
  • Gastroenterologist
NPI1790749430
Medicare services, 2018
427
Part D claims, 2019
52
Publications
3
State licenses
2
Year NPI issued
2006
Practice address
400 Hobart St, Cadillac, MI 49601
Practice phone
Call (650) 498-6500
Professional email
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Personal email
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Mobile number
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Social profiles

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Dr. Mary F. Chan is a gastroenterologist in Cadillac, Michigan

Dr. Chan practices in Cadillac, Michigan.

Dr. Chan's NPI, 1790749430, was assigned on April 12, 2006. Dr. Chan graduated from Heersink School of Medicine - Birmingham in 1986. Dr. Chan holds California license G66642.

NPI and contact details
NPI enumeration date
April 12, 2006
NPI status
Active
Practice phone
(650) 498-6500
Professional email
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Personal email
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Mobile number
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Sex
Female
Medical school graduation
1986

Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data

Dr. Mary F. Chan's practice address is in Cadillac, Michigan

Dr. Chan's practice address in the NPI Registry is 400 Hobart St, Cadillac, MI 49601, in Wexford County. The practice phone is (650) 498-6500.

  • NPI Registry address
    400 Hobart St, Cadillac, MI 49601 · Wexford CountyPhone(650) 498-6500

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. Mary F. Chan's practice

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

EHR by site
SiteEHR vendor and product
Dr. Chan's practiceAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mary F. Chan is one of 487 gastroenterologists in Michigan

Gastroenterology is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Chan's licenses on file in 2 states: California and Missouri.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense G66642 · 1989 to 2026 · taxonomy 207RG0100X
  • Missouri license1994 to 2016

Gastroenterologists near Dr. Chan

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. Mary F. Chan billed Medicare for 427 services in 2018

CMS data shows 427 Medicare services from Dr. Chan across 10 procedure codes in 2018. Medicare paid $32,358 for them.

Medicare services, 2018427
Paid by Medicare$32,358
Procedure codes10

Dr. Chan's Medicare services by type, 2017 to 2018

  • 2017
  • 2018
Office and hospital visits
2017: 2162018: 216No change
Other services
2017: 222018: 123459%
Surgery
2017: 152018: 55267%
Tests and treatments
2017: 02018: 33

Where Dr. Chan's Medicare services took place, 2018

  • In an office21651%
  • In a facility21149%

Dr. Chan compared with the Michigan median for gastroenterologists, 2018

  • Dr. Chan
  • Michigan median
Medicare services
427vs 32432% above
Part D claims
52vs 42488% below

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

Dr. Chan's most billed Medicare procedure codes, 2018

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

Dr. Mary F. Chan's patients have a median age of 56

Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 56, with 25% women.

Dr. Chan's patients across all payers

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

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women25%
  • Men75%

Source: Dmand AI Patient Panel Data

Dr. Mary F. Chan wrote 52 Medicare Part D claims in 2019

In 2019, Dr. Chan wrote 52 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $1,944 in total drug cost. In 2018, CMS named 309 claims across 8 drugs.

Part D claims, 201952
Drugs named by CMS3
Total drug cost$1,944

Dr. Chan's most prescribed drugs by claims, 2019

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, 2018 to 2019

  • 2018
  • 2019
Claims for drugs CMS names
2018: 3092019: 5283%

Drugs named by CMS: 3 in 2019, 8 in 2018.

See all prescribing by Dr. Chan

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. Mary F. Chan has 3 publications on record

Dmand AI links 3 papers to Dr. Chan.

Papers3

Recent publications by Dr. Chan

See all 3 publications and co-authors

See who Dr. Chan researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chan works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mary F. Chan has 1 award and honors on record

Dmand AI lists 1 award for Dr. Chan, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Chan

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Mary F. Chan graduated from Heersink School of Medicine - Birmingham

Dr. Chan graduated from Heersink School of Medicine - Birmingham in 1986.

  1. Medical schoolHeersink School of Medicine - Birmingham
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Mary F. Chan'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
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. Mary F. Chan

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. Mary F. Chan's NPI number?

Dr. Mary F. Chan's NPI number is 1790749430. It was assigned on April 12, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary F. Chan?

Dr. Mary F. Chan is a gastroenterologist in Cadillac, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Mary F. Chan practice?

Dr. Chan practices at 400 Hobart St, Cadillac, MI 49601.

What is Dr. Mary F. Chan's office phone number?

The practice phone on file for Dr. Chan is (650) 498-6500.

What is Dr. Mary F. Chan's medical license number?

Dr. Chan holds California license G66642, one of the licenses on file in 2 states.

Which states has Dr. Mary F. Chan been licensed in?

Dmand AI has state licenses on file for Dr. Chan in California (1989 to 2026) and Missouri (1994 to 2016).

Does Dr. Mary F. Chan accept Medicare?

Yes. CMS data shows Dr. Chan billed Medicare for 427 services in 2018.

Is Dr. Mary F. Chan board certified?

Yes. Dr. Chan is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Mary F. Chan bill to Medicare?

In 2018, Dr. Chan's most billed Medicare services were office visit, established patient (99213), medicare service (G0500) and special service (99153).

Where did Dr. Mary F. Chan go to medical school?

Dr. Chan graduated from Heersink School of Medicine - Birmingham in 1986.

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What drugs does Dr. Mary F. Chan prescribe most?

In 2019 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Amitriptyline HCl, Omeprazole and Esomeprazole Magnesium.

How long has Dr. Mary F. Chan been practicing?

Dr. Chan graduated from medical school in 1986, 40 years ago.

Does Dr. Mary F. Chan do research?

Dmand AI links 3 publications to Dr. Chan.

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