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MRS. HEATHER DIANN KNOWLES APN-BC ACNP
NPI 1922244045
Nurse Practitioner - Acute Care in Mount Vernon, IL

Active since December 18, 2008PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
4109 S WATER TOWER PL, MOUNT VERNON, IL 62864(618) 244-4060(618) 242-1350 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mrs. Heather Diann Knowles Apn-bc Acnp NPPES

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

MRS. HEATHER DIANN KNOWLES APN-BC ACNP (NPI 1922244045) is an individual acute care provider in Mount Vernon, Illinois, licensed in Illinois (209007400) and active in the NPI registry since December 2008. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital -centralia, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1922244045
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameMRS. HEATHER DIANN KNOWLESCredential: APN-BC ACNP
Location Address4109 S WATER TOWER PLMount Vernon, IL 62864-6293
Mailing Address4109 S Water Tower PlMount Vernon, IL 62864-6293 · (618) 244-4060 · Fax (618) 242-1350
Phone(618) 244-4060
Fax(618) 242-1350
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateDecember 18, 2008
Last NPPES UpdateMarch 12, 2026
NPPES CertifiedMarch 12, 2026
✔ NPI 1922244045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in IL · 209007400
4109 S WATER TOWER PL, Mount Vernon, IL 62864
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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

Mrs. Heather Diann Knowles Apn-bc Acnp 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 ID8729142401
PECOS Enrollment IDI20090123000448
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 7

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.

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.
957 services612 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.
467 services412 patients
Ultrasound measurement of bladder capacity after voiding 51798
Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.
368 services275 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.
290 services219 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
82 services82 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
48 services48 patients

Hospital Affiliations CMS Care Compare 5

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

Ssm Health St Mary's Hospital -Centralia

Acute Care Hospitals · Centralia, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140034
Location400 North Pleasant AvenueCentralia, IL 62801 · Marion County
Emergency services

Good Samaritan Regional Hlth Center

Acute Care Hospitals · Mount Vernon, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140046
Location1 Good Samaritan WayMount Vernon, IL 62864 · Jefferson County
Emergency services Birthing friendly

Washington County Hospital

Critical Access Hospitals · Nashville, IL
OwnershipGovernment - Hospital District or Authority
CMS Certification Number141308
Location705 S Grand AveNashville, IL 62263 · Washington County
Emergency services

Franklin Hospital

Critical Access Hospitals · Benton, IL
OwnershipGovernment - Hospital District or Authority
CMS Certification Number141321
Location201 Bailey LaneBenton, IL 62812 · Franklin County
Emergency services

Salem Township Hospital

Critical Access Hospitals · Salem, IL
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number141345
Location1201 Ricker DriveSalem, IL 62881 · Marion County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62864 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Reported Quality Measures

Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
18%356 patients1/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
96%1,674 patients4/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
81%443 patients3/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
97%1,452 patients4/55-star benchmark: 99%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
72%629 patients3/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
17%660 patients1/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
98%1,452 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
1%1,452 patients1/55-star benchmark: 59%
Urinary Incontinence: Assessment of Presence or Absence of Urinary Incontinence in Women Aged 65 Years and Older
Percentage of female patients aged 65 years and older who were assessed for the presence or absence of urinary incontinence within 12 months
100%256 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351
DME-Orthotic Devices · category DF008N
4 suppliers35 claims6,200 services$1.45 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

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

DR. DAVID R KNOWLES MD
Urology
4109 S WATER TOWER PL
MOUNT VERNON, IL 62864
Jefferson County (618) 244-4060

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 Heather Knowles's NPI number?

The NPI number for Heather Knowles is 1922244045. It was assigned to this individual provider in the NPPES registry on December 18, 2008.

Where is Heather Knowles located?

Heather Knowles practices at 4109 S Water Tower Pl, Mount Vernon, IL 62864. The listed phone number is (618) 244-4060.

What is Heather Knowles's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Heather Knowles enrolled in Medicare?

Yes. Heather Knowles 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.

Is Heather Knowles affiliated with any hospitals?

According to CMS data, Heather Knowles is affiliated with Ssm Health St Mary's Hospital -Centralia, Good Samaritan Regional Hlth Center, Washington County Hospital, Franklin Hospital and Salem Township Hospital.

When was this NPI record last updated?

The NPPES record for Heather Knowles was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.