KATHLEEN RITZERT CNP
NPI 1225583362
Nurse Practitioner in Ann Arbor, MI

NPI Status: Active since August 18, 2016

Contact Information

2215 FULLER RD
ANN ARBOR, MI
ZIP 48105
Phone: (734) 769-1624

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  • Individual
  • Female
  • Nurse Practitioner
  • Accepts Insurance
  • PECOS Enrolled

About KATHLEEN RITZERT

This page provides the complete NPI Profile along with additional information for Kathleen Ritzert, a provider established in Ann Arbor, Michigan with a medical specialization in Nurse Practitioner. The healthcare provider is registered in the NPI registry with number 1225583362 assigned on August 2016. The practitioner's primary taxonomy code is 363L00000X with license number 4704251887 (MI). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1225583362
Provider Name
KATHLEEN RITZERT CNP
Gender
Female
Entity Type
Individual
Location Address
2215 FULLER RD ANN ARBOR, MI 48105
Location Phone
(734) 769-1624
Mailing Address
2215 FULLER RD ANN ARBOR, MI 48105
Mailing Phone
(734) 769-7100
Is Sole Proprietor?
No
Enumeration Date
08-18-2016
Last Update Date
03-20-2026
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A nurse practitioner (NP) like Kathleen Ritzert is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Nurse Practitioner

Taxonomy Code
363L00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
4704251887
License State
MI
Taxonomy Description
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • MyPriority Balanced Silver - HMO
  • MyPriority Balanced Silver Trinity Health East Network - HMO
  • MyPriority Enhanced Gold Trinity Health East Network - HMO
  • MyPriority Premier Silver - HMO
  • MyPriority Premier Silver Trinity Health East Network - HMO
  • MyPriority Standard Bronze - HMO
  • MyPriority Standard Bronze - Travel - HMO
  • MyPriority Standard Bronze - Trinity Health East Network - HMO
  • MyPriority Standard Gold - HMO
  • MyPriority Standard Gold Trinity Health East Network - HMO
  • MyPriority Standard Silver - HMO
  • MyPriority Standard Silver - Travel - HMO
  • MyPriority Standard Silver - Trinity Health East Network - HMO
  • MyPriority Value Bronze - HMO
  • MyPriority Value Bronze HSA - HMO
  • MyPriority Value Bronze HSA Trinity Health East Network - HMO
  • MyPriority Value Bronze Trinity Health East Network - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Kathleen Ritzert is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 17 times for 17 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 35 times for 35 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 18 times for 18 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 42 times for 40 patients

Established patient office or other outpatient visit, 40-54 minutes

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.

This service was performed 18 times for 18 patients

Established patient office or other outpatient visit, 40-54 minutes

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.

This service was performed 41 times for 41 patients

External shock to heart to regulate heart beat

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

This service was performed 65 times for 59 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 48105 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $90.76
  • Minimum New Patient Price $58.04
  • Maximum New Patient Price $177.36
  • Average New Patient Copayment $22.69
  • Minimum New Patient Copayment $14.51
  • Maximum New Patient Copayment $44.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $102.35
  • Minimum Established Patient Price $18.32
  • Maximum Established Patient Price $143.49
  • Average Established Patient Copayment $25.58
  • Minimum Established Patient Copayment $4.58
  • Maximum Established Patient Copayment $35.87

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for KATHLEEN RITZERT CNP

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1225583362, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
2
Doubled → 4
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
2
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 2 → 4 5 → 10 → 1 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 4 + 5 + 1 + 0 + 8 + 6 + 3 + 1 + 2 + 24 = 58

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1225583362.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pharmacist
2215 FULLER RD
ANN ARBOR, MI 48105
Pharmacist
2215 FULLER RD
ANN ARBOR, MI 48105
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
2215 FULLER RD
ANN ARBOR, MI 48105
Internal Medicine
2215 FULLER RD, HSR&D (11H)
ANN ARBOR, MI 48105
Internal Medicine (Rheumatology)
2215 FULLER RD
ANN ARBOR, MI 48105
Physical Medicine & Rehabilitation
2215 FULLER RD, ROUTER 117
ANN ARBOR, MI 48105
General Acute Care Hospital
2215 FULLER RD
ANN ARBOR, MI 48105
Nurse Practitioner (Family)
2215 FULLER RD
ANN ARBOR, MI 48105
Nurse Practitioner
2215 FULLER RD, VA ANN ARBOR HEALTHCARE SYSTEM
ANN ARBOR, MI 48105
Nurse Practitioner (Family)
2215 FULLER RD, (111A) - CARDIOLOGY
ANN ARBOR, MI 48105
Nurse Practitioner (Psychiatric/Mental Health)
2215 FULLER RD
ANN ARBOR, MI 48105
Internal Medicine
2215 FULLER RD
ANN ARBOR, MI 48105
Nurse Practitioner (Adult Health)
2215 FULLER RD, CARDIOLOGY 111A
ANN ARBOR, MI 48105
Nurse Practitioner (Adult Health)
2215 FULLER RD
ANN ARBOR, MI 48105
Dentist (General Practice)
2215 FULLER RD, DENTAL SERVICE 160
ANN ARBOR, MI 48105
Pharmacist
2215 FULLER RD, AMBULATORY CARE (11A)
ANN ARBOR, MI 48105
Nurse Practitioner (Adult Health)
2215 FULLER RD
ANN ARBOR, MI 48105
Occupational Therapist
2215 FULLER RD, OCCUPATIONAL THERAPY
ANN ARBOR, MI 48105
Nurse Practitioner (Adult Health)
2215 FULLER RD
ANN ARBOR, MI 48105
Nurse Practitioner
2215 FULLER RD
ANN ARBOR, MI 48105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1225583362, enumerated as an "individual" on August 18, 2016.

The provider is located at 2215 FULLER RD ANN ARBOR, MI 48105 and the phone number is (734) 769-1624.

Nurse Practitioner with taxonomy code 363L00000X.

The provider might be accepting Accepts: Priority Health. Please consult your insurance carrier or call the provider to verify.