Dr. William D. Barker, DO
- Medicare services, 2024
- 473
- Medicare patients, 2024
- 135
- Part D claims, 2024
- 7,296
- Hospital affiliations
- 2
- Industry payments
- $957
- Practice address
- 15855 Nineteen Mile Rd, Clinton Twp, MI 48038
- Practice phone
- Call (586) 263-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Barker's professional email, personal email and mobile number
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Dr. William D. Barker is a family medicine physician in Clinton Twp, Michigan
Dr. Barker practices at Henry Ford Macomb Hospital in Clinton Twp, Michigan, part of Henry Ford Health.
Dr. Barker's NPI, 1275554073, was assigned on July 21, 2006. Dr. Barker graduated from Michigan State University College of Osteopathic Medicine in 1998. Dr. Barker holds Michigan license 5101013935.
- NPI
- 1275554073NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193866143
- NPI enumeration date
- July 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (586) 263-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
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. Barker practices at Henry Ford Macomb Hospital in Clinton Twp, Michigan
Dr. Barker's primary practice is Henry Ford Macomb Hospital, at 15855 Nineteen Mile Rd, Clinton Twp, MI 48038 in Macomb County. The practice phone is (586) 263-2300.
- Henry Ford Macomb Hospital15855 Nineteen Mile Rd, Clinton Twp, MI 48038 · Macomb CountyPhone(586) 263-2300
Source: Dmand AI Affiliation Data
Dr. William D. Barker is affiliated with 5 sites of care and 2 medical groups
Dr. Barker's primary practice is Henry Ford Macomb Hospital in Clinton Twp, Michigan, part of Henry Ford Health. Dr. Barker is also affiliated with Henry Ford Hospital. The medical group on file is Henry Ford Health. Dmand AI also links Dr. Barker to 1 more group practice or clinic, 1 home health agency, 1 hospital outpatient department and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William D. Barker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barker practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Henry Ford Macomb Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Henry Ford Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William D. Barker is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Barker's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Barker is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Barker
Counts of family medicine physicians 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. Barker billed Medicare for 473 services in 2024
CMS data shows 473 Medicare services from Dr. Barker across 6 procedure codes in 2024, for 135 Medicare patients. Medicare paid $24,051 for them. Every service was in an office.
Dr. Barker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2192024: 2142%
- Other services
- 2023: 492024: 189286%
- Surgery
- 2023: 792024: 5234%
- Tests and treatments
- 2023: 152024: 1820%
Dr. Barker compared with the Michigan median for family medicine physicians, 2024
- Dr. Barker
- Michigan median
- Medicare services
- 473vs 24891% above
- Medicare patients
- 135vs 11221% above
- Part D claims
- 6,525vs 1,0336.3 times
Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Barker'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. Barker and other family medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William D. Barker treated 135 Medicare patients in 2024, average age 69
CMS counts 135 Medicare patients who saw Dr. Barker in 2024. The largest group is 65 to 74, with 72 patients. 70% of them have high blood pressure, and 70% have high cholesterol. 15% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Barker's median patient age at 56, with 52% women.
Dr. Barker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Barker's Medicare patients by sex, 2024
- Women7354%
- Men6246%
Chronic conditions among Dr. Barker's Medicare patients, 2024
- High blood pressure70%
- High cholesterol70%
- Arthritis41%
- Diabetes24%
- Chronic kidney disease21%
- Ischemic heart disease19%
- Anxiety18%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barker'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
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William D. Barker wrote 7,296 Medicare Part D claims in 2024
In 2024, Dr. Barker wrote 7,296 Medicare Part D claims for 561 patients. 87% of them were for generic drugs. CMS names the drug for 6,525 of them, across 135 drugs with 11 or more claims each, at $452,316 in total drug cost. In 2023, CMS named 5,767 claims across 135 drugs.
Dr. Barker's Part D claims by kind of drug, 2024
- Generic6,362 claims87%
- Brand-name873 claims12%
- Other61 claims1%
Dr. Barker'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. Barker's Part D claims, 2024
- Opioids7%536 of 7,296 claims
- Antibiotics3%217 of 7,296 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: 5,7672024: 6,52513%
Drugs named by CMS: 135 in 2024, 135 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. William D. Barker offers telehealth to Medicare patients
Dr. Barker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Barker as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal or shaving of skin growth: 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)
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Dr. William D. Barker received $957 in industry payments from 2016 to 2023
CMS Open Payments shows 14 general payments to Dr. Barker from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 99% of the total. Novo Nordisk Inc paid the most, $383.
General payments to Dr. Barker by program year, 2016 to 2023
General payments to Dr. Barker by kind, 2016 to 2023
- Food and beverage$94399%
- Education$141%
Companies that paid Dr. Barker the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William D. Barker graduated from Michigan State University College of Osteopathic Medicine
Dr. Barker graduated from Michigan State University College of Osteopathic Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William D. Barker'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. William D. Barker
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. Barker's NPI number?
Dr. William D. Barker's NPI number is 1275554073. It was assigned on July 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William D. Barker?
Dr. William D. Barker is a family medicine physician in Clinton Twp, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. William D. Barker practice?
Dr. Barker practices at 15855 Nineteen Mile Rd, Clinton Twp, MI 48038. Dr. Barker's primary practice is Henry Ford Macomb Hospital in Clinton Twp, Michigan, part of Henry Ford Health. Dmand AI also links Dr. Barker to 1 group practice or clinic, 1 home health agency, 1 hospital outpatient department and 1 medical group.
What is Dr. William D. Barker's office phone number?
The practice phone on file for Dr. Barker is (586) 263-2300.
What is Dr. William D. Barker's medical license number?
Dr. Barker holds Michigan license 5101013935.
Which hospitals is Dr. William D. Barker affiliated with?
Dr. Barker practices at Henry Ford Macomb Hospital in Clinton Twp, Michigan. Dr. Barker is also affiliated with Henry Ford Hospital.
What medical group is Dr. William D. Barker part of?
Dr. Barker is linked to Henry Ford Health. Dmand AI links Dr. Barker to 1 more medical group.
Does Dr. William D. Barker accept Medicare?
Yes. CMS data shows Dr. Barker billed Medicare for 473 services in 2024, and Dr. Barker accepts Medicare assignment.
Does Dr. William D. Barker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Barker as offering telehealth services.
How many Medicare patients does Dr. William D. Barker see?
CMS counts 135 Medicare patients who saw Dr. Barker in 2024, with an average age of 69.
Show 5 more questionsShow fewer questions
What services does Dr. William D. Barker bill to Medicare?
In 2024, Dr. Barker's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and surgery: heart and blood vessels (36415).
Where did Dr. William D. Barker go to medical school?
Dr. Barker graduated from Michigan State University College of Osteopathic Medicine in 1998.
What drugs does Dr. William D. Barker prescribe most?
In 2024 Medicare Part D data, Dr. Barker's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Omeprazole and Levothyroxine Sodium.
Has Dr. William D. Barker received payments from drug or device companies?
CMS Open Payments shows $957 in general payments to Dr. Barker from 4 companies from 2016 to 2023. The largest total came from Novo Nordisk Inc.
How long has Dr. William D. Barker been practicing?
Dr. Barker graduated from medical school in 1998, 28 years ago.
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