DR. JOHN CLYDE IV WILLIAMS (M.D.) – Hospitalist Physician, NPI 1841467198

DR. JOHN CLYDE IV WILLIAMS (M.D.) is a healthcare provider. based in Roswell, Georgia. specializing in PULMONARY DISEASE, CRITICAL CARE (INTENSIVISTS). They hold the professional credentials M.D.. They hold a License No. E-6744 (AR). The NPI Number for DR. JOHN CLYDE IV WILLIAMS (M.D.) is 1841467198

Main info

Male
20 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOHN CLYDE IV WILLIAMS (M.D.)
NPI
1841467198
Phone
(770) 410-4366
Address
4500 Hospital Blvd Ste 310
Enumeration Date
14 May 2008
Last Update Date
25 May 2023

Doctor Profile

Medical School Name
LOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN SHREVEPORT
Secondary Phone
7704248222
Graduation Year
2006 (20 years ago)
PAC ID
4385813401
Group Practice PAC ID
6709065402
Professional Enrollment ID
I20200320002303
Address ID
GA301527742KE5150XRDXX501

Contacts

Secure Messaging
cwilliams367303@directwellstar.org
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience92
Completeness85
Years active:18State licenses:4Other namesUpdated within 12 months

503 PULMONARY DISEASE in GA

Provider Addresses for DR. JOHN CLYDE IV WILLIAMS (M.D.)

  • 4500 Hospital Blvd Ste 310

    Roswell, GA 30076

    Phone: (770) 410-4366

    Type: Location

  • 1664 MULKEY RD

    AUSTELL, GA 301061114

    Phone: (770) 422-1372

    Type: Mailing

  • Hospital Boulevard, Roswell, Fulton, Georgia, 30009, United States

    ROSWELL, GA 300760001

    Phone: (770) 410-4366

    Type: Mailing

  • 1900, University Boulevard, Highland Avenue Historic District, Five Points South, Birmingham, Jefferson County, Alabama, 35233, United States

    THT 422

    BIRMINGHAM, AL 35294

    Phone: (318) 805-7617

    Type: Location

  • 309 Jackson St

    Monroe, LA 712017407

    Phone: (318) 966-4541

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 64 Open Payments records for all available years, with a total value of $1,866.

Total Amount is formed as General ($1,866) + Research ($0) + Ownership ($0) = $1,866.

Last reported payment date: 2024-11-26 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($369).

Total Amount

$1,866

General + Research + Ownership

Payments

64

Total payment records

General Amount

$1,866

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-26

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2020-03-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20150901000369IPulmonary DiseaseLATBD
I20200320002303IPulmonary DiseaseGATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes13274$0
99214Established patient office or other outpatient visit, 30-39 minutes6146$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes6046$0
99213Established patient office or other outpatient visit, 20-29 minutes4435$0
99291Critical care, first 30-74 minutes3528$0
View full utilization report →

Insurance plans in this area (ZIP 30076)

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Provider's Procedures

DR. JOHN CLYDE IV WILLIAMS (M.D.) performs procedures in PULMONARY DISEASE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PULMONARY DISEASEAL31500Emergent insertion of breathing tube into windpipe cartilage using an endoscope1312

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6709065402View full group profile
NameSpecialtyState
-GA
-GA
-GA
R H E U M A T O L O G YMI
Hospitalist, Internal MedicineGA
Nurse PractitionerTN
Family PracticeGA
Physician AssistantGA
Physician AssistantGA
Hospitalist, Internal MedicineGA

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Frequently asked questions

Is there an official ID for DR. JOHN CLYDE IV WILLIAMS (M.D.) in U.S. healthcare records?
The official identifier for DR. JOHN CLYDE IV WILLIAMS (M.D.) is NPI 1841467198.
Is DR. JOHN CLYDE IV WILLIAMS (M.D.) shown as active in public data?
Registry records indicate DR. JOHN CLYDE IV WILLIAMS (M.D.) maintains an active NPI.
What expertise is attributed to DR. JOHN CLYDE IV WILLIAMS (M.D.)?
DR. JOHN CLYDE IV WILLIAMS (M.D.)'s specialty line reads Hospitalist Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for DR. JOHN CLYDE IV WILLIAMS (M.D.)?
Travel planning: use Roswell, Georgia as the reference point for DR. JOHN CLYDE IV WILLIAMS (M.D.), then confirm.
Can I trust this NPI listing for DR. JOHN CLYDE IV WILLIAMS (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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