WILLIAM C SUMMERS MD
NPI 1265471650
Internal Medicine in Saint Louis, MO

Active since June 04, 2006PECOS EnrolledAccepts Medicare Assignment
3915 WATSON RD STE 202, SAINT LOUIS, MO 63109(314) 244-3818(888) 464-1108 Get Directions Write a Review

NPPES record last updated: May 31, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 12, 2022, Nov 23, 2022, Nov 2, 2021 and 1 more (4 updates tracked since 2017).

About William C Summers Md NPPES

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

WILLIAM C SUMMERS MD (NPI 1265471650) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2007010580) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1265471650
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM C SUMMERSCredential: MD
Location Address3915 WATSON RD STE 202Saint Louis, MO 63109-1251
Mailing Address3915 Watson Rd Ste 202Saint Louis, MO 63109-1251 · (314) 244-3818 · Fax (888) 464-1108
Fax(888) 464-1108
Sole ProprietorNo
Medical School CMSUniversity Of Alabama School Of MedicineGraduated 1999
Enumeration DateJune 4, 2006
Last NPPES UpdateMay 31, 20244 updates tracked since enumeration
NPPES CertifiedSeptember 6, 2023
NPI 1265471650 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MO · 2007010580
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License 2007010580 (MO), 39419 (TN)
3915 WATSON RD STE 202, Saint Louis, MO 63109

Secondary Practice Location 1

Location 16188 MacKenzie Valley CtSaint Louis, MO 63123-3477 · Phone (314) 686-9714 · Fax (888) 464-1108

Other Identifiers 6

Medicaid09016197MS
Medicaid3327876TN
Other4102661TN · Bcbs Of Tn
Medicaid204589808MO
Medicaid3721649TN
Medicaid09752214MS

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 C Summers 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 ID648224329
PECOS Enrollment IDI20070724000735
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.

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.
345 services112 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
62 services62 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
52 services47 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
45 services37 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
32 services32 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.
27 services27 patients

Hospital Affiliations CMS Care Compare 4

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City 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

Ssm Health St Mary's Hospital - St Louis

Acute Care Hospitals · Richmond Heights, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260091
Location6420 Clayton RdRichmond Heights, MO 63117 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63109 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier11 claims12 services$215.65 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 2

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

Nurse Practitioner (Pediatrics)
3915 WATSON RD STE 202
SAINT LOUIS, MO 63109
Internal Medicine
3915 WATSON RD STE 202
SAINT LOUIS, MO 63109

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 Summers's NPI number?

The NPI number for William Summers is 1265471650. It was assigned to this individual provider in the NPPES registry on June 4, 2006.

Where is William Summers located?

William Summers practices at 3915 Watson Rd Ste 202, Saint Louis, MO 63109. The listed phone number is (314) 244-3818.

What is William Summers's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Summers enrolled in Medicare?

Yes. William Summers 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 Summers accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list William Summers 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 Summers affiliated with any hospitals?

According to CMS data, William Summers is affiliated with Mercy Hospital St Louis, Barnes Jewish Hospital, Mercy Hospital South and Ssm Health St Mary's Hospital - St Louis.

When was this NPI record last updated?

The NPPES record for William Summers was last updated on May 31, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.