MARY-JANE WILLIAMS M.D.
NPI 1285096032
Internal Medicine - Gastroenterology in Scottsdale, AZ

Q: What is Mary-jane Williams's NPI number?

The NPI number for Mary-jane Williams is 1285096032. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Q: What is Mary-jane Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since March 22, 2016PECOS EnrolledAccepts Medicare Assignment

13400 E SHEA BLVD, SCOTTSDALE, AZ 85259(480) 301-8000 Get Directions Write a Review

NPPES record last updated: July 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 25, 2024, Nov 14, 2023, Dec 17, 2020 and 4 more (7 updates tracked since 2016).

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About Mary-jane Williams M.d. NPPES

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

MARY-JANE WILLIAMS M.D. (NPI 1285096032) is an individual gastroenterology provider in Scottsdale, Arizona, licensed in Arizona (69010) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Health System - Mankato, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1285096032

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameMARY-JANE WILLIAMSCredential: M.D.

Location Address13400 E SHEA BLVDScottsdale, AZ 85259-5499

Mailing Address13400 E Shea BlvdScottsdale, AZ 85259-5499 · (480) 301-8000

Phone(480) 301-8000

Sole ProprietorNo

Medical School CMSOtherGraduated 2007

Enumeration DateMarch 22, 2016

Last NPPES UpdateJuly 17, 20257 updates tracked since enumeration

NPPES CertifiedJuly 17, 2025

✔ NPI 1285096032 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in AZ · 69010✔ Licensed in NM · MD2023-1313

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 18189 (NV)

13400 E SHEA BLVD, Scottsdale, AZ 85259

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of NC, Medica.Insurance ›

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

Mary-jane Williams 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 ID8123313871

PECOS Enrollment IDI20240613002591, I20250930002446, I20251105003239, I20260317000939, I20260318001617

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 6

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.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

56 services53 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

36 services34 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

24 services24 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

18 services18 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

14 services14 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Mayo Clinic Health System - Mankato

Acute Care Hospitals · Mankato, MN

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240093

Location1025 Marsh StreetMankato, MN 56001 · Blue Earth County

Emergency services Birthing friendly

Faith Regional Health Services

Acute Care Hospitals · Norfolk, NE

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number280125

Location2700 West Norfolk AveNorfolk, NE 68701 · Madison County

Emergency services Birthing friendly

Medina Hospital

Acute Care Hospitals · Medina, OH

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360091

Location1000 East Washington StreetMedina, OH 44256 · Medina County

Emergency services

Mercy Hospital Oklahoma City, Inc

Acute Care Hospitals · Oklahoma City, OK

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number370013

Location4300 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85259 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

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

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.

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.

AMITKUMAR MEHTA MD

Internal Medicine (Hematology & Oncology)