William Robert Barker, M.D.
Family Medicine Physician · Saint Paul, MN
William Robert Barker, M.D. is a family medicine physician with a practice address in Saint Paul, Minnesota, and NPI 1396927364, issued on Dec 3, 2007. Check the license (Minnesota 79423, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- William Robert Barker
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 79423 MN
MD469005 PA
Self-reported in NPPES; status is on the state search - Practice location
- 233 Grand Ave, Saint Paul, MN 55102
- Phone
- (651) 241-5200
- Enumerated
- Dec 3, 2007
- Record last updated
- Jun 3, 2025
- Fax
- (651) 241-6427
- Medicare enrollment
- Enrolled (PECOS I20250424002986); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2006
- Entity
- Type 1 · individual
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Verify William Robert Barker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 79423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average family medicine physician in 2024
5,969 Medicare Part D claims for 322 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 97 claims were for opioids.
Most prescribed
- Atorvastatin Calcium312 claims
- Lisinopril195 claims
- Omeprazole195 claims
- Levothyroxine Sodium169 claims
- Gabapentin143 claims
- Amlodipine Besylate140 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $18.31
1 payment: food and beverage; the largest payer was Sobi, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Allina Health SystemSaint Paul, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Robert Barker among 3,985 family medicine physician records in Minnesota
William Robert Barker, M.D. is one of 3,985 family medicine physician records with a practice address in Minnesota. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 58% of them.
- NPI issued2007 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2006 · median 2006 among the 2,483 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
232 family medicine physician records list a practice address in Saint Paul
They are 232 of the 10,084 NPPES records with a practice address in Saint Paul, and 3,985 family medicine physician records in Minnesota.
All 3,985 in Minnesota → Every provider in Saint Paul → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ravi Balasubrahmanyan, MDSaint Paul, MN 551021053359760
- Jose Bernard, M.D.Saint Paul, MN 551021841239175
- Katherine Johnson, MDSaint Paul, MN 551021730282518
- Laurie Kaiser Sund, M.D.Saint Paul, MN 551021437198769
- Alan Melnychuk, MDSaint Paul, MN 551021730131483
- Ronald Otremba, MDSaint Paul, MN 551021699713305
- Donald Piper, MDSt Paul, MN 551021811083645
- Brian Prokosch, MDSaint Paul, MN 551021831152388
Common questions
What is William Robert Barker, M.D.'s NPI number?
William Robert Barker, M.D.'s National Provider Identifier (NPI) is 1396927364, issued on Dec 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Robert Barker, M.D. located?
The NPPES record lists a practice address at 233 Grand Ave, Saint Paul, MN, 55102. Phone: (651) 241-5200. Providers update this record themselves, so call before visiting.
How can I verify William Robert Barker, M.D.'s license?
NPPES lists Minnesota license number 79423, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Robert Barker, M.D. prescribe under Medicare Part D?
In 2024, William Robert Barker, M.D. had 5,969 Medicare Part D claims for 322 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.