DR. WILLIAM B. MEHARD MD
NPI 1548293673
Radiology - Diagnostic Radiology in Chesterfield, MO

Active since July 09, 2006PECOS EnrolledAccepts Medicare Assignment
16091 SWINGLEY RIDGE RD STE 100, CHESTERFIELD, MO 63017(314) 238-5260(314) 821-1833 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Oct 29, 2020, Aug 27, 2019, Apr 23, 2018 (3 updates tracked since 2018).

About Dr. William B. Mehard Md NPPES

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

DR. WILLIAM B. MEHARD MD (NPI 1548293673) is an individual diagnostic radiology provider in Chesterfield, Missouri, licensed in Missouri (105364) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Phelps County Regional Medical Center, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1548293673
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. WILLIAM B. MEHARDCredential: MD
Location Address16091 SWINGLEY RIDGE RD STE 100Chesterfield, MO 63017-2056
Mailing Address11475 Olde Cabin Rd Ste 200Saint Louis, MO 63141-7129 · (314) 991-8200 · Fax (314) 991-8206
Fax(314) 821-1833
Sole ProprietorNo
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 1990
Enumeration DateJuly 9, 2006
Last NPPES UpdateJuly 24, 20253 updates tracked since enumeration
NPPES CertifiedJuly 24, 2025
NPI 1548293673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses Licensed in MO · 105364 Licensed in WV · 21769 Licensed in WI · 47536-020 Licensed in VA · 0101240978 Licensed in TN · 39195 Licensed in PA · MD459690 Licensed in KY · 39889 Licensed in IL · 036112582 Licensed in KS · 04330951
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
16091 SWINGLEY RIDGE RD STE 100, Chesterfield, MO 63017

Secondary Practice Locations 4

Location 110010 Kennerly RdSaint Louis, MO 63128-2106 · Phone (314) 525-4492 · Fax (314) 525-4481
Location 2301 Tyson AveParis, TN 38242-4544 · Phone (314) 238-5260 · Fax (314) 821-1833
Location 3751 Liberty StMeadville, PA 16335-2559 · Phone (314) 238-5260 · Fax (314) 821-1833
Location 4202 Rosemont AveWebster Groves, MO 63119-2413 · Phone (636) 675-0322

Other Identifiers 2

Medicaid209727817MO
MedicaidQ047518TN

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

Dr. William B. Mehard Md 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 ID3375507718
PECOS Enrollment IDI20041116000684, I20170727001050, I20230413003174
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 74

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
1,588 services1,410 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
742 services718 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
381 services372 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
316 services314 patients
Ct scan of upper spine without contrast 72125
A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.
264 services261 patients
X-ray of abdomen, 1 view 74018
An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.
263 services226 patients

Hospital Affiliations CMS Care Compare 5

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

Phelps County Regional Medical Center

Acute Care Hospitals · Rolla, MO
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number260017
Location1000 W 10th StRolla, MO 65401 · Phelps County
Emergency services Birthing friendly

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Missouri Delta Medical Center

Acute Care Hospitals · Sikeston, MO
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260113
Location1008 North Main StSikeston, MO 63801 · Scott County
Emergency services Birthing friendly

Millcreek Community Hospital

Acute Care Hospitals · Erie, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390198
Location5515 Peach StreetErie, PA 16509 · Erie County
Emergency services

Henry County Medical Center

Acute Care Hospitals · Paris, TN
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number440132
Location301 Tyson AvParis, TN 38242 · Henry County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63017 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

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

Psychiatry & Neurology (Psychiatry)
16091 SWINGLEY RIDGE RD STE 100
CHESTERFIELD, MO 63017
Radiology (Diagnostic Radiology)
16091 SWINGLEY RIDGE RD STE 100
CHESTERFIELD, MO 63017
Radiology (Diagnostic Radiology)
16091 SWINGLEY RIDGE RD STE 100
CHESTERFIELD, MO 63017
Psychiatry & Neurology (Psychiatry)
16091 SWINGLEY RIDGE RD STE 100
CHESTERFIELD, MO 63017

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 Mehard's NPI number?

The NPI number for William Mehard is 1548293673. It was assigned to this individual provider in the NPPES registry on July 9, 2006.

Where is William Mehard located?

William Mehard practices at 16091 Swingley Ridge Rd Ste 100, Chesterfield, MO 63017. The listed phone number is (314) 238-5260.

What is William Mehard's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is William Mehard enrolled in Medicare?

Yes. William Mehard 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 Mehard accept?

Health plans from Molina Healthcare and Oscar Insurance Company list William Mehard 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 Mehard affiliated with any hospitals?

According to CMS data, William Mehard is affiliated with Phelps County Regional Medical Center, Mercy Hospital South, Missouri Delta Medical Center, Millcreek Community Hospital and Henry County Medical Center.

When was this NPI record last updated?

The NPPES record for William Mehard was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.