DR. NATHAN ALANN WILLIAMS M.D.
NPI 1154874980
Pediatrics in Grand Rapids, MI

Active since July 28, 2016PECOS EnrolledAccepts Medicare Assignment
330 BARCLAY AVE NE STE 300, GRAND RAPIDS, MI 49503(616) 391-8810 Get Directions Write a Review

NPPES record last updated: July 28, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Nathan Alann Williams M.d. NPPES

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

DR. NATHAN ALANN WILLIAMS M.D. (NPI 1154874980) is an individual pediatrics provider in Grand Rapids, Michigan, licensed in Michigan (4301110704) and active in the NPI registry since July 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1154874980
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. NATHAN ALANN WILLIAMSCredential: M.D.
Location Address330 BARCLAY AVE NE STE 300Grand Rapids, MI 49503-2527
Mailing Address330 Barclay Ave Ne Ste 300Grand Rapids, MI 49503-2527 · (616) 391-8810
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJuly 28, 2016
NPI 1154874980 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License Licensed in MI · 4301110704
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
330 BARCLAY AVE NE STE 300, Grand Rapids, MI 49503

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. Nathan Alann 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 ID9537453949
PECOS Enrollment IDI20220709000941
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503
Pediatrics
330 BARCLAY AVE NE STE 300
GRAND RAPIDS, MI 49503

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 Nathan Williams's NPI number?

The NPI number for Nathan Williams is 1154874980. It was assigned to this individual provider in the NPPES registry on July 28, 2016.

Where is Nathan Williams located?

Nathan Williams practices at 330 Barclay Ave NE Ste 300, Grand Rapids, MI 49503. The listed phone number is (616) 391-8810.

What is Nathan Williams's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Nathan Williams enrolled in Medicare?

Yes. Nathan 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 Nathan Williams was last updated on July 28, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.