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WILLIAM R COOK M.D.
NPI 1750344263
Internal Medicine in Summerville, SC

Active since April 07, 2006PECOS Enrolled
295A MIDLAND PKWY, SUITE 140, SUMMERVILLE, SC 29485(843) 851-3800(843) 851-7787 Get Directions Write a Review

NPPES record last updated: March 24, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 24, 2016, Feb 12, 2016 (2 updates tracked since 2016).

About William R Cook M.d. NPPES

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

WILLIAM R COOK M.D. (NPI 1750344263) is an individual internal medicine provider in Summerville, South Carolina, licensed in South Carolina (6106) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750344263
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM R COOKCredential: M.D.
Location Address295A MIDLAND PKWY, SUITE 140Summerville, SC 29485-8104
Mailing Address295a Midland Pkwy, Suite 140Summerville, SC 29485-8104 · (843) 851-3800 · Fax (843) 851-7787
Phone(843) 851-3800
Fax(843) 851-7787
Sole ProprietorNo
Enumeration DateApril 7, 2006
Last NPPES UpdateMarch 24, 20162 updates tracked since enumeration
✔ NPI 1750344263 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in SC · 6106
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.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 6106 (SC)
295A MIDLAND PKWY, Summerville, SC 29485
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Other Identifiers 5

Other110073909SC · Railroad Medicare Ga
Other110073909SC · Railroad Medicare Id
Medicaid061060SC
Medicare PIND992463101SC
Medicare UPIND99246SC

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William R Cook M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show William Cook reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Public Hospital Dist No 1 Skagit
2,384 mi
Rural Health
1190 RIDDLE STREET
Darrington, WA 98241
  • Reassigned Medicare billing, Washington enrollment
  • 463 clinicians in this Medicare group
NPI 1013064575 (360) 436-1055

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29485 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
$124.04 typical visit price
range $53.57 – $163.84
Typical copayment $31.01 (range $13.39 – $40.96)
Most-billed visit code 99204
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
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.

Referred Medical Equipment & Supplies CMS DME claims 15

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
15 suppliers159 claims159 services$36.50 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
11 suppliers96 claims96 services$85.63 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
11 suppliers111 claims296 services$32.94 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
13 suppliers85 claims476 services$17.94 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
10 suppliers62 claims338 services$12.80 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
16 suppliers142 claims142 services$50.25 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 William Cook's NPI number?

The NPI number for William Cook is 1750344263. It was assigned to this individual provider in the NPPES registry on April 7, 2006.

Where is William Cook located?

William Cook practices at 295A Midland Pkwy Suite 140, Summerville, SC 29485. The listed phone number is (843) 851-3800.

What is William Cook's specialty?

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

Is William Cook enrolled in Medicare?

Yes. William Cook is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Cook's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Cook reassigns Medicare benefits to Public Hospital Dist No 1 Skagit (Darrington, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Cook's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Cook was last updated on March 24, 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.