WILLIAM HAYMOND COOK M.D.
NPI 1598799850
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Montgomery, AL
About William Haymond Cook M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM HAYMOND COOK M.D. (NPI 1598799850) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Montgomery, Alabama, licensed in Alabama (26039) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William Haymond Cook 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.
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.
Montgomery, AL 36116
- Reassigned Medicare billing, Alabama enrollment
- 439 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 36116 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MONTGOMERY, AL 36116
MONTGOMERY, AL 36116
MONTGOMERY, AL 36116
MONTGOMERY, AL 36116
MONTGOMERY, AL 36116
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 1598799850. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is William Cook located?
William Cook practices at 2055 E South Blvd Ste 603, Montgomery, AL 36116. The listed phone number is (334) 747-8800.
What is William Cook's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is William Cook enrolled in Medicare?
Yes. William Cook 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.
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 The Health Care Authority For Baptist Health, An Affiliate Of Uabhs (Montgomery, AL). 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.
What insurance does William Cook accept?
Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee and Blue Cross and Blue Shield of Alabama list William Cook 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 William Cook was last updated on August 8, 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.
# William Haymond Cook, M.D. · NPI 1598799850
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Montgomery, Alabama. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1598799850 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** 26039 (Alabama)
- **Sole proprietor:** No
## Practice location
- **Address:** 2055 E SOUTH BLVD STE 603, Montgomery, AL 36116-2014
- **Phone:** (334) 747-8800
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Health Care Authority For Baptist Health, An Affiliate Of Uabhs (NPI 1881881266, Montgomery, AL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** August 8, 2023
- **Other identifiers:** Other 000000239939; Medicaid 2363517 (OH); Other 1800451; and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1598799850) · Data from the CMS NPPES public registry.