JOHN WILLIAMS
NPI 1023637964
Hospitalist in Jamaica, NY
About John Williams NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN WILLIAMS (NPI 1023637964) is an individual hospitalist provider in Jamaica, New York, licensed in New York (326752) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Sacred Heart Hospital On The Emerald Coast, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
John Williams 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 Reassignments
8Medicare enrollment records show John Williams reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11234
- Reassigned Medicare billing, New York enrollment
- 158 clinicians in this Medicare group
Riverhead, NY 11901
- Reassigned Medicare billing, New York enrollment
- 134 clinicians in this Medicare group
Poughkeepsie, NY 12601
- Reassigned Medicare billing, New York enrollment
- 304 clinicians in this Medicare group
Petersburg, WV 26847
- Reassigned Medicare billing, West Virginia enrollment
- 85 clinicians in this Medicare group
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 52 clinicians in this Medicare group
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 54 clinicians in this Medicare group
Panama City, FL 32401
- Reassigned Medicare billing, Florida enrollment
- 199 clinicians in this Medicare group
Bentonville, AR 72712
- Reassigned Medicare billing, Arkansas enrollment
- 204 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 8
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sacred Heart Hospital On The Emerald Coast
Acute Care Hospitals · Miramar Beach, FLWynn Hospital
Acute Care Hospitals · Utica, NYPeconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYSt Anthony Community Hospital
Acute Care Hospitals · Warwick, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11432 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JAMAICA, NY 11432
JAMAICA, NY 11432
JAMAICA, NY 11432
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 John Williams's NPI number?
The NPI number for John Williams is 1023637964. It was assigned to this individual provider in the NPPES registry on April 10, 2020.
Where is John Williams located?
John Williams practices at 8268 164th St, Jamaica, NY 11432. The listed phone number is (347) 500-9487.
What is John Williams's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is John Williams enrolled in Medicare?
Yes. John 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.
Which organizations bill Medicare for John Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Williams reassigns Medicare benefits to 8 organizations: Mill Basin Medical Health PC (Brooklyn, NY), Central Suffolk Hospital (Riverhead, NY), New York Medical Physician Associates PC (Poughkeepsie, NY), Grant Memorial Hospital Inc (Petersburg, WV), Apogee Medical Group Maine PC (Bangor, ME) and 3 more organizations, listed in the Medicare section above. Each 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 John Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Williams accept?
Health plans from Arkansas Blue Cross and Blue Shield, Health Advantage and Octave list John 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.
Is John Williams affiliated with any hospitals?
According to CMS data, John Williams is affiliated with Sacred Heart Hospital On The Emerald Coast, Wynn Hospital, Peconic Bay Medical Center and St Anthony Community Hospital.
When was this NPI record last updated?
The NPPES record for John Williams was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# John Williams · NPI 1023637964
Hospitalist physician in Jamaica, New York. Individual provider, active in the CMS NPPES registry since April 10, 2020.
## Identity
- **NPI:** 1023637964 (Entity type: Individual)
- **Enumerated:** April 10, 2020
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 326752 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 8268 164TH ST, Jamaica, NY 11432-1104
- **Phone:** (347) 500-9487
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Mill Basin Medical Health PC (NPI 1346006202, Brooklyn, NY); Central Suffolk Hospital (NPI 1043402050, Riverhead, NY); New York Medical Physician Associates PC (NPI 1578316501, Poughkeepsie, NY); Grant Memorial Hospital Inc (NPI 1013603919, Petersburg, WV); Apogee Medical Group Maine PC (NPI 1659152742, Bangor, ME); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** May 26, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1023637964) · Data from the CMS NPPES public registry.