Dr. William D. Chey, MD

  • Ann Arbor, MI
  • Gastroenterologist
NPI1487736906PAC ID5496845372
Medicare services, 2024
60
Medicare patients, 2024
63
Part D claims, 2024
392
Publications
201
Clinical trials
3
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
Social profiles

Primary practice

University Hospital

School-Based Health Center · Ann Arbor, Michigan

See all 3 affiliations

Find Dr. Chey's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Dr. William D. Chey is a gastroenterologist in Ann Arbor, Michigan

Dr. Chey practices at University Hospital in Ann Arbor, Michigan.

Dr. Chey's NPI, 1487736906, was assigned on October 20, 2006. Dr. Chey graduated from Emory University School of Medicine in 1986. Dr. Chey holds Michigan license 4301056884.

NPI and contact details
Medicare PAC ID
5496845372
NPI enumeration date
October 20, 2006
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
Male
Estimated age
66
Medical school graduation
1986

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

Dr. William D. Chey practices at University Hospital in Ann Arbor, Michigan

Dr. Chey's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.

  • University Hospital
    1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000

Source: Dmand AI Affiliation Data

Dr. William D. Chey is affiliated with 2 sites of care and 1 medical group

Dr. Chey's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Chey is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dr. Chey's employer is on file too: a school & student health.

See all 3 affiliations for Dr. Chey

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

Dmand AI tracks the EHR system at Dr. William D. Chey's practice

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

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

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Chey practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. William D. Chey is one of 487 gastroenterologists in Michigan

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

Specialties and state licenses

  • Gastroenterology, MichiganPrimaryLicense 4301056884 · taxonomy 207RG0100X

Gastroenterologists near Dr. Chey

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. William D. Chey billed Medicare for 60 services in 2024

CMS data shows 60 Medicare services from Dr. Chey across 3 procedure codes in 2024, for 63 Medicare patients. Medicare paid $2,596 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202460
Medicare patients63
Paid by Medicare$2,596
Procedure codes3

Dr. Chey's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 662024: 4138%
Other services
2023: 02024: 19
Tests and treatments
2023: 982024: 0100%
Surgery
2023: 122024: 0100%

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

  • Dr. Chey
  • Michigan median
Medicare services
60vs 32481% below
Medicare patients
63vs 23073% below
Part D claims
292vs 42431% below

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

Dr. Chey'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. Chey

Need commercial claims for Dr. Chey?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chey and other gastroenterologists in Michigan.

Book a meeting

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

Dr. William D. Chey treated 63 Medicare patients in 2024, average age 68

CMS counts 63 Medicare patients who saw Dr. Chey in 2024. The largest group is 65 to 74, with 33 patients. 63% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chey's median patient age at 53, with 73% women.

Medicare patients, 202463
Average age68
Average risk score1.16

Dr. Chey's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Chey's Medicare patients by sex, 2024

  • Women4673%
  • Men1727%

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

  1. High cholesterol63%
  2. High blood pressure60%
  3. Arthritis48%
  4. Anxiety40%
  5. Mood disorders33%
  6. Depression29%
  7. Chronic kidney disease25%
  8. Osteoporosis25%

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

Dr. Chey's patients across all payers

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

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women73%
  • Men27%

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

Dr. William D. Chey wrote 392 Medicare Part D claims in 2024

In 2024, Dr. Chey wrote 392 Medicare Part D claims for 73 patients. 78% of them were for generic drugs. CMS names the drug for 292 of them, across 14 drugs with 11 or more claims each, at $78,415 in total drug cost. In 2023, CMS named 231 claims across 10 drugs.

Part D claims, 2024392
Drugs named by CMS14
Total drug cost$78,415
Part D patients73

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

  • Generic306 claims78%
  • Brand-name86 claims22%

Dr. Chey'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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2312024: 29226%

Drugs named by CMS: 14 in 2024, 10 in 2023.

See all prescribing by Dr. Chey

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. William D. Chey offers telehealth to Medicare patients

Dr. Chey accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chey as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

Find gastroenterologists like Dr. Chey by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. William D. Chey has 201 publications on record

Dmand AI links 201 papers to Dr. Chey, published from 2005 to 2025. 2022 was the busiest year, with 21. The most frequent topics are Irritable Bowel Syndrome, Constipation and Diarrhea. Dr. Chey has published most often in Am J Gastroenterol. Dr. Chey's most frequent co-authors are Stacy Bartnik Menees, MD, Richard J. Saad, MD and Eric Dinesh Shah, MBA, MD.

Papers201
Years published2005 to 2025

Dr. Chey's papers by year, 2016 to 2025

Topics Dr. Chey writes about most

  • Irritable Bowel Syndrome
  • Constipation
  • Diarrhea
  • Defecation
  • Abdominal Pain
  • Helicobacter Infections
  • Diet, Carbohydrate-Restricted
  • Double-Blind Method

Dr. Chey's most frequent co-authors

Recent publications by Dr. Chey

See all 201 publications and co-authors

See who Dr. Chey researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chey 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. William D. Chey has worked on 3 clinical trials

Dmand AI links Dr. Chey to 3 clinical trials. 1 is still active or recruiting. Conditions studied include Fecal Incontinence, Rectal Diseases and Irritable Bowel Syndrome.

Conditions in Dr. Chey's trials

  • Fecal Incontinence
  • Rectal Diseases
  • Irritable Bowel Syndrome
  • Colonic Diseases, Functional

Investigators on the most trials with Dr. Chey

Recent clinical trials with Dr. Chey

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. William D. Chey received $212,893 in industry payments from 2016 to 2025

CMS Open Payments shows 175 general payments to Dr. Chey from 28 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 69% of the total. Shire North American Group Inc paid the most, $41,224. It also lists 1 research payment totaling $115,002 in 2019.

General payments to Dr. Chey by program year, 2016 to 2025

General payments to Dr. Chey by kind, 2016 to 2025

$212.9Kin total
  • Consulting fees$146,06069%
  • Speaker and faculty fees$33,53716%
  • Honoraria$16,4828%
  • Travel and lodging$9,9155%
  • Other$6,9003%

Companies that paid Dr. Chey the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Chey

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

Dr. William D. Chey graduated from Emory University School of Medicine

Dr. Chey graduated from Emory University School of Medicine in 1986.

  1. Medical schoolEmory University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. William D. Chey'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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. William D. Chey

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. William D. Chey's NPI number?

Dr. William D. Chey's NPI number is 1487736906. It was assigned on October 20, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William D. Chey?

Dr. William D. Chey is a gastroenterologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. William D. Chey practice?

Dr. Chey practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Chey's primary practice is University Hospital in Ann Arbor, Michigan.

What is Dr. William D. Chey's office phone number?

The practice phone on file for Dr. Chey is (734) 936-4000.

What is Dr. William D. Chey's medical license number?

Dr. Chey holds Michigan license 4301056884.

Which hospitals is Dr. William D. Chey affiliated with?

Dr. Chey is affiliated with University Hospital.

What medical group is Dr. William D. Chey part of?

Dr. Chey is linked to University of Michigan Health.

Does Dr. William D. Chey accept Medicare?

Yes. CMS data shows Dr. Chey billed Medicare for 60 services in 2024, and Dr. Chey accepts Medicare assignment.

Does Dr. William D. Chey offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Chey as offering telehealth services.

How many Medicare patients does Dr. William D. Chey see?

CMS counts 63 Medicare patients who saw Dr. Chey in 2024, with an average age of 68.

Show 7 more questionsShow fewer questions

What services does Dr. William D. Chey bill to Medicare?

In 2024, Dr. Chey's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G2211).

Where did Dr. William D. Chey go to medical school?

Dr. Chey graduated from Emory University School of Medicine in 1986.

What drugs does Dr. William D. Chey prescribe most?

In 2024 Medicare Part D data, Dr. Chey's most prescribed drugs by claims were Colesevelam HCl, Omeprazole and Linzess.

Has Dr. William D. Chey received payments from drug or device companies?

CMS Open Payments shows $212,893 in general payments to Dr. Chey from 28 companies from 2016 to 2025. The largest total came from Shire North American Group Inc.

How long has Dr. William D. Chey been practicing?

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

Does Dr. William D. Chey do research?

Dmand AI links 201 publications to Dr. Chey, published from 2005 to 2025. Dr. Chey has worked on 3 clinical trials.

Who does Dr. William D. Chey publish with?

Dr. Chey's most frequent co-authors are Stacy Bartnik Menees, MD (22 shared papers), Richard J. Saad, MD (15 shared papers) and Eric Dinesh Shah, MBA, MD (13 shared papers).

Selling to gastroenterology practices?

See gastroenterologists in Michigan by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)