WILLIAM ROBERT BARKER M.D.
NPI 1396927364
Family Medicine in Saint Paul, MN

Active since December 03, 2007PECOS EnrolledAccepts Medicare Assignment
233 GRAND AVE, SAINT PAUL, MN 55102(651) 241-5200(651) 241-6427 Get Directions Write a Review

NPPES record last updated: June 3, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 3, 2025, Nov 1, 2019, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About William Robert Barker M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM ROBERT BARKER M.D. (NPI 1396927364) is an individual family medicine provider in Saint Paul, Minnesota, licensed in Minnesota (79423) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with Allina United Hospital, and is a graduate of Temple University School Of Medicine (2006).

NPPES Registry Identity

NPI1396927364
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameWILLIAM ROBERT BARKERCredential: M.D.
Location Address233 GRAND AVESaint Paul, MN 55102-2331
Mailing Address2925 Chicago AveMinneapolis, MN 55407-1321 · (612) 262-9000 · Fax (570) 271-6578
Fax(651) 241-6427
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 2006
Enumeration DateDecember 3, 2007
Last NPPES UpdateJune 3, 20254 updates tracked since enumeration
NPPES CertifiedJune 3, 2025
NPI 1396927364 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in MN · 79423 Licensed in PA · MD469005
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
233 GRAND AVE, Saint Paul, MN 55102

Other Identifiers 1

OtherC1-0008525DE · Medical License

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William Robert Barker M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739307190
PECOS Enrollment IDI20250424002986
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anticoagulant management of patient taking warfarin 93793
Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.
196 services28 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
146 services58 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
124 services90 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
77 services52 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
40 services39 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
39 services37 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Allina United Hospital

Acute Care Hospitals · Saint Paul, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240038
Location333 North Smith AvenueSaint Paul, MN 55102 · Ramsey County
Emergency services Birthing friendly

Abbott Northwestern Hospital

Acute Care Hospitals · Minneapolis, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240057
Location800 East 28th StreetMinneapolis, MN 55407 · Hennepin County
Emergency services Birthing friendly

Geisinger Wyoming Valley Medical Center

Acute Care Hospitals · Wilkes Barre, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390270
Location1000 East Mountain BoulevardWilkes Barre, PA 18711 · Luzerne County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.82 typical visit price
range $56.00 – $168.28
Typical copayment $21.45 (range $14.00 – $42.07)
Most-billed visit code 99203
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$40.57 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
233 GRAND AVE
SAINT PAUL, MN 55102
Student in an Organized Health Care Education/Training Program
233 GRAND AVE
SAINT PAUL, MN 55102
Student in an Organized Health Care Education/Training Program
233 GRAND AVE
SAINT PAUL, MN 55102
Family Medicine
233 GRAND AVE
SAINT PAUL, MN 55102
Psychologist (Counseling)
233 GRAND AVE
SAINT PAUL, MN 55102
Family Medicine
233 GRAND AVE
SAINT PAUL, MN 55102
Student in an Organized Health Care Education/Training Program
233 GRAND AVE
SAINT PAUL, MN 55102
Student in an Organized Health Care Education/Training Program
233 GRAND AVE
SAINT PAUL, MN 55102

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Barker's NPI number?

The NPI number for William Barker is 1396927364. It was assigned to this individual provider in the NPPES registry on December 3, 2007.

Where is William Barker located?

William Barker practices at 233 Grand Ave, Saint Paul, MN 55102. The listed phone number is (651) 241-5200.

What is William Barker's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is William Barker enrolled in Medicare?

Yes. William Barker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Barker accept?

Health plans from Medica list William Barker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Barker affiliated with any hospitals?

According to CMS data, William Barker is affiliated with Allina United Hospital, Abbott Northwestern Hospital and Geisinger Wyoming Valley Medical Center.

When was this NPI record last updated?

The NPPES record for William Barker was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.