1. Home
  2. Directory
  3. Missouri
  4. Washington
  5. Internal Medicine
  6. NPI Profile

BRYCE A AYERS M.D.
NPI 1689610446
Internal Medicine in Washington, MO

Active since June 21, 2006PECOS EnrolledAccepts Medicare Assignment
901 PATIENTS FIRST DR, WASHINGTON, MO 63090(636) 239-7500(636) 239-2836 Get Directions Write a Review

NPPES record last updated: June 8, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Bryce A Ayers M.d. NPPES

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

BRYCE A AYERS M.D. (NPI 1689610446) is an individual internal medicine provider in Washington, Missouri, licensed in Missouri (113393) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Southern Illinois University School Of Medicine (1996).

NPPES Registry Identity

NPI1689610446
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBRYCE A AYERSCredential: M.D.
Location Address901 PATIENTS FIRST DRWashington, MO 63090-4700
Mailing Address901 Patients First DrWashington, MO 63090-4700 · (636) 239-7500 · Fax (636) 239-2836
Phone(636) 239-7500
Fax(636) 239-2836
Sole ProprietorNo
Medical School CMSSouthern Illinois University School Of MedicineGraduated 1996
Enumeration DateJune 21, 2006
Last NPPES UpdateJune 8, 2015
✔ NPI 1689610446 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 113393
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.
901 PATIENTS FIRST DR, Washington, MO 63090
Open in Google Maps ↗

Other Identifiers 6

Other110201138Railroad Medicare
Medicare PIN016012943
OtherP01134659MO · Railroad Medicare
Medicaid204831507MO
Medicare PIN152810077MO
Medicare UPINH10115

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Bryce A Ayers 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 ID2567356298
PECOS Enrollment IDI20100618000640
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Bryce Ayers reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Clinic Adult Hospitalists - Washington, LLC
1.2 mi
Hospitalist
901 E 5TH ST
Washington, MO 63090
  • Reassigned Medicare billing, Missouri enrollment
  • 261 clinicians in this Medicare group
NPI 1891943429 (636) 239-8231
Mercy Clinic East Communities
21 mi
Multi-Specialty
16555 MANCHESTER RD STE 110
Wildwood, MO 63040
  • Reassigned Medicare billing, Missouri enrollment
  • 228 clinicians in this Medicare group
NPI 1164857397 (636) 405-3155

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

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.
453 services242 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
205 services21 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.
137 services113 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
127 services127 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.
111 services111 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
104 services104 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

Mercy Hospital Washington

Acute Care Hospitals · Washington, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260052
Location901 East 5th StreetWashington, MO 63090 · Franklin County
Emergency services

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

Hermann Area District Hospital

Critical Access Hospitals · Hermann, MO
OwnershipGovernment - Hospital District or Authority
CMS Certification Number261314
Location509 W 18th StHermann, MO 65041 · Gasconade County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63090 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
$121.96 typical visit price
range $52.28 – $161.24
Typical copayment $30.49 (range $13.07 – $40.31)
Most-billed visit code 99204
Established Patient
$93.24 typical visit price
range $16.30 – $131.05
Typical copayment $23.31 (range $4.07 – $32.76)
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 13

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
13 suppliers55 claims132 services$6.34 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
4 suppliers15 claims15 services$1.13 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
3 suppliers11 claims11 services$72.19 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
4 suppliers11 claims66 services$1.64 avg. paid by Medicare
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$42.25 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier20 claims20 services$15.78 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.

MERCY CLINIC OPHTHALMOLOGY LLC
Ophthalmology
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 231-3651
MRS. CYNTHIA GRACE LOHRER PT/CHT
Physical Therapist
901 PATIENTS FIRST DR, SUITE 2600
WASHINGTON, MO 63090
Franklin County (636) 390-1700
AMY LEE SWOBODA FNP-BC
Nurse Practitioner (Family)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 239-4100
SUDHANSHU GOGIA MD
Internal Medicine (Hepatology)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 239-7344
KATARZYNA ANNE KOHLER DO
Family Medicine
901 PATIENTS FIRST DR, SUITE 1200
WASHINGTON, MO 63090
Franklin County (636) 390-1777
VICTORIA L YENZER NP
Nurse Practitioner (Adult Health)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 239-7500
PATIENTS FIRST HEALTH CARE LLC
Clinic/Center (Urgent Care)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 390-1777
DR. MARISSA CHRISTINE STOCK MD
Pediatrics
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 231-3690

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 Bryce Ayers's NPI number?

The NPI number for Bryce Ayers is 1689610446. It was assigned to this individual provider in the NPPES registry on June 21, 2006.

Where is Bryce Ayers located?

Bryce Ayers practices at 901 Patients First Dr, Washington, MO 63090. The listed phone number is (636) 239-7500.

What is Bryce Ayers's specialty?

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

Is Bryce Ayers enrolled in Medicare?

Yes. Bryce Ayers 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.

Which organizations bill Medicare for Bryce Ayers's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Bryce Ayers reassigns Medicare benefits to 2 organizations: Mercy Clinic Adult Hospitalists - Washington, LLC (Washington, MO) and Mercy Clinic East Communities (Wildwood, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Bryce Ayers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Bryce Ayers accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Bryce Ayers 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 Bryce Ayers affiliated with any hospitals?

According to CMS data, Bryce Ayers is affiliated with Mercy Hospital St Louis, Mercy Hospital Washington, Mercy Hospital South and Hermann Area District Hospital.

When was this NPI record last updated?

The NPPES record for Bryce Ayers was last updated on June 8, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.