DR. MICHELLE K B WILLIAMS MD
NPI 1811079858
Emergency Medicine in Tucson, AZ

Active since October 19, 2006PECOS EnrolledAccepts Medicare Assignment
97.75/100
CMS Quality Rating
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT, TUCSON, AZ 85712(520) 324-1922(520) 324-1088 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Michelle K B Williams Md NPPES

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

DR. MICHELLE K B WILLIAMS MD (NPI 1811079858) is an individual emergency medicine provider in Tucson, Arizona, licensed in Arizona (26394) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine (1996).

NPPES Registry Identity

NPI1811079858
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. MICHELLE K B WILLIAMSCredential: MD
Location Address5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENTTucson, AZ 85712-2805
Mailing Address5700 E Pima Street, Suite BTucson, AZ 85712-5601 · (520) 382-2819 · Fax (520) 382-2832
Fax(520) 324-1088
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 1996
Enumeration DateOctober 19, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1811079858 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in AZ · 26394
Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

5301 E GRANT ROAD, Tucson, AZ 85712

Other Identifiers 4

Other496423AZ · Ahcccs
Medicare ID-Type UnspecifiedZ61340
Medicare UPINH14041
Medicaid496423-01AZ

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

Dr. Michelle K B Williams 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 ID7911039235
PECOS Enrollment IDI20100721000651
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 5

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
95 services92 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
72 services69 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
71 services66 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
12 services12 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85712 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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.

97.75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Improvement Activities40
Cost92.52

Other Providers at the Same Location NPPES 14

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

Emergency Medicine
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712
Pediatrics (Pediatric Emergency Medicine)
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712
Emergency Medicine
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712
Pediatrics (Pediatric Emergency Medicine)
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712
Emergency Medicine
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712
Emergency Medicine
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712
Student in an Organized Health Care Education/Training Program
5301 E GRANT ROAD
TUCSON, AZ 85712
Emergency Medicine
5301 E GRANT ROAD, TUCSON MEDICAL CENTER EMERGENCY DEPARTMENT
TUCSON, AZ 85712

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 Michelle Williams's NPI number?

The NPI number for Michelle Williams is 1811079858. It was assigned to this individual provider in the NPPES registry on October 19, 2006.

Where is Michelle Williams located?

Michelle Williams practices at 5301 E Grant Road Tucson Medical Center Emergency Department, Tucson, AZ 85712. The listed phone number is (520) 324-1922.

What is Michelle Williams's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Michelle Williams enrolled in Medicare?

Yes. Michelle Williams 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.

When was this NPI record last updated?

The NPPES record for Michelle Williams was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.