Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Sharon Elizabeth Knotts , NP

Nurse Practitioner • Ann Arbor, MI

Active NPI 1457857088 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

1500 East Medical Center Dr, 3rd Floor Med Inn Rm 333
Ann Arbor, MI 481095832

Call 7347639812 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1500 East Medical Center Dr
3rd Floor Med Inn Rm 333

Ann Arbor, MI 481095832

Telephone 7347639812
Organization at the Same NPPES Address or Phone

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Regents Of The University Of Michigan. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2016

Medicare patients

58 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $5,177 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $4,037 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021–2025.

Guide: How to read an Open Payments record

Years since graduation

10 years (graduated 2016)

CMS Doctors and Clinicians data list 2016 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2018

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Sharon Knotts has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Sharon Knotts as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Ann Arbor and Michigan

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 65% of clinicians listed under Nurse Practitioner in Ann Arbor, MI (2024, 205 clinicians with data). Median for this group: 134. Middle half: 62 to 337.

Fewer Medicare Part B services than 70% of clinicians listed under Nurse Practitioner in Michigan (2024, 1,378 clinicians with data). Median for this group: 168. Middle half: 71 to 378.

Medicare-allowed amount

A lower Medicare-allowed amount than 70% of clinicians listed under Nurse Practitioner in Ann Arbor, MI (2024, 205 clinicians with data). Median for this group: $11,456. Middle half: $4,963 to $23,447.

A lower Medicare-allowed amount than 75% of clinicians listed under Nurse Practitioner in Michigan (2024, 1,378 clinicians with data). Median for this group: $13,524. Middle half: $5,497 to $27,098.

Paid by Medicare

A lower Medicare payment amount than 70% of clinicians listed under Nurse Practitioner in Ann Arbor, MI (2024, 205 clinicians with data). Median for this group: $8,091. Middle half: $3,667 to $17,455.

A lower Medicare payment amount than 75% of clinicians listed under Nurse Practitioner in Michigan (2024, 1,378 clinicians with data). Median for this group: $9,893. Middle half: $4,037 to $20,052.

704 active clinicians are listed under Nurse Practitioner with a practice address in Ann Arbor, MI (3,598 in Michigan).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Ann Arbor

18.6% of these 704 clinicians have the CMS telehealth indicator.

44.7% of these 704 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2017–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2018–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
70 36 $213.06 $67.25
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
11 11 $127.45 $42.67

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES MI 4704269037

(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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Michigan Department of Licensing and Regulatory Affairs.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20180504000050

Enrollment State Jurisdiction

MI

PECOS Control ID

5395009062

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Regents Of The University Of Michigan

1500 E Medical Ctr Dr, Ann Arbor, MI 481095000

Phone: 7349364000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

4 listed
Elizabeth Andersen , FNP

Nurse Practitioner - Family

NPI 1285014043

Family Nurse Practitioner

Christina Degeorge , PA-C

Physician Assistant

NPI 1134207590

Physician Assistant (Certified)

Nimita Mehta , NP

Nurse Practitioner

NPI 1568703148

Nurse Practitioner

Dr. Joanna Spencer-Segal , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1609161611

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

11 Historical Events
📍
Updated Practice Location December 21, 2018

Registered at 1500 EAST MEDICAL CENTER DR, 3RD FLOOR MED INN RM 333, ANN ARBOR, MI 481095832 (Tel: 7347639812)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 21, 2018

Nurse Practitioner (license number reported to NPPES: MI 4704269037)

📍
Updated Practice Location May 01, 2018

Registered at 1500 E MEDICAL CENTER DR, ANN ARBOR, MI 481095000 (Tel: 7349364000)

📍
Updated Business Mailing Address May 01, 2018

Registered at 3621 S STATE ST, ANN ARBOR, MI 481081633 (Tel: 7349364000)

👤
Provider Name / Credentials Updated May 01, 2018

Recorded as SHARON KNOTTS, NP

✅
NPI Profile Active April 03, 2018

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) April 03, 2018

Registered at MEND - 5560 MSRB II, 1150 W MEDICAL CENTER DR, ANN ARBOR, MI 481095678 (Tel: 7342326673)

📍
Business Mailing Address (Initial Record) April 03, 2018

Registered at 42318 JENNINGS CT, CANTON, MI 481881125 (Tel: 8105994306)

👤
Provider Name / Credentials (Initial Record) April 03, 2018

Recorded as SHARON KNOTTS

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 03, 2018

Nurse Practitioner (license number reported to NPPES: MI 2016010154)

🟢
Initial NPI Registration & Enumeration April 03, 2018

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1457857088
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 03, 2018
Last Update: December 21, 2018
Sole Proprietor: No

Other Nurse Practitioners in Ann Arbor

All Nurse Practitioners in Ann Arbor

Mailing Address

3621 S State St

Ann Arbor, MI 481081633

Phone: 7346475299

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.