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DR. GLENDA GAYLE WILLIAMS M.D.
NPI 1639379605
Internal Medicine in Phoenix, AZ

Active since July 19, 2007PECOS EnrolledAccepts Medicare Assignment
8913 N 19TH AVE, PHOENIX, AZ 85021(602) 858-4361 Get Directions Write a Review

NPPES record last updated: January 19, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Glenda Gayle Williams M.d. NPPES

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

DR. GLENDA GAYLE WILLIAMS M.D. (NPI 1639379605) is an individual internal medicine provider in Phoenix, Arizona, licensed in Arizona (81250) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1639379605
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. GLENDA GAYLE WILLIAMSCredential: M.D.
Location Address8913 N 19TH AVEPhoenix, AZ 85021-4206
Mailing Address102 Woodmont Blvd Ste 600Nashville, TN 37205-5250 · (615) 314-8069
Phone(602) 858-4361
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateJuly 19, 2007
Last NPPES UpdateJanuary 19, 2023
NPPES CertifiedJanuary 19, 2023
✔ NPI 1639379605 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 81250
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
8913 N 19TH AVE, Phoenix, AZ 85021
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Other Names 1

Former Name (1)Dr. Glenda-gayle Haskin Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc..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

Dr. Glenda Gayle 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 ID3577713858
PECOS Enrollment IDI20121023000050
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

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.

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.
13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85021 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 4

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

PARWIN SHETAB SADAAT MD
Family Medicine
8913 N 19TH AVE
PHOENIX, AZ 85021
Maricopa County (602) 858-4361
ERICA SIMMONS NP
Nurse Practitioner (Primary Care)
8913 N 19TH AVE
PHOENIX, AZ 85021
Maricopa County (602) 858-4361
CHRISTINA SUMMERS FNP-C
Nurse Practitioner (Family)
8913 N 19TH AVE
PHOENIX, AZ 85021
Maricopa County (602) 858-4361
ELENA AMINOV
Nurse Practitioner (Gerontology)
8913 N 19TH AVE
PHOENIX, AZ 85021
Maricopa County (602) 858-4361

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 Glenda Williams's NPI number?

The NPI number for Glenda Williams is 1639379605. It was assigned to this individual provider in the NPPES registry on July 19, 2007. The provider is also known as Dr. Glenda-Gayle Haskin MD.

Where is Glenda Williams located?

Glenda Williams practices at 8913 N 19th Ave, Phoenix, AZ 85021. The listed phone number is (602) 858-4361.

What is Glenda Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Glenda Williams enrolled in Medicare?

Yes. Glenda 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.

What insurance does Glenda Williams accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Glenda Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Glenda Williams was last updated on January 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.