NANCY WILLIAMS (M.D.) – Hospice and Palliative Medicine (Internal Medicine) Physician, NPI 1235190448

NANCY WILLIAMS (M.D.) is a healthcare provider. based in Elk city, Oklahoma. specializing in INTERNAL MEDICINE, HOSPICE/PALLIATIVE CARE. They hold the professional credentials M.D.. They hold a License No. 22490 (OK). The NPI Number for NANCY WILLIAMS (M.D.) is 1235190448

Main info

Female
25 Years Of Experience
Accepts Medicare Assignment
Name
NANCY WILLIAMS (M.D.)
NPI
1235190448
Phone
(580) 821-5320
Address
PO BOX 2339
Enumeration Date
29 March 2006
Last Update Date
16 December 2015

Doctor Profile

Medical School Name
UNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Secondary Phone
9187564233
Graduation Year
2001 (25 years ago)
PAC ID
9133101363
Group Practice PAC ID
5698786226
Professional Enrollment ID
I20040602000973
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience59
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,474 INTERNAL MEDICINE in OK

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Provider Addresses for NANCY WILLIAMS (M.D.)

  • PO BOX 2339

    ELK CITY, OK 736482339

    Phone: (580) 821-5320

    Fax: (580) 225-9143

    Type: Mailing

  • Holliman Medical Building, 1705, East 19th Street, Yorktown, Tulsa, Tulsa County, Oklahoma, 74104, United States

    SUITE 302

    TULSA, OK 741045405

    Phone: (918) 748-7585

    Fax: (918) 748-7539

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $22.

Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.

Last reported payment date: 2023-08-31 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($22).

Total Amount

$22

General + Research + Ownership

Payments

1

Total payment records

General Amount

$22

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-08-31

Latest reported date

Top Companies

Largest payers in this snapshot

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: 2022-08-29

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
I20040602000973IInternal MedicineOKTBD
I20220829000914IHospitalistTXTBD

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
99291Critical care, first 30-74 minutes15372$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes8650$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes6750$0
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes2422$0
99238Hospital discharge day management, 30 minutes or less1414$0
View full utilization report →

Insurance plans in this area (ZIP 73648)

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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: 5698786226View full group profile

Reviews

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Frequently asked questions

What NPI should I save for NANCY WILLIAMS (M.D.)?
Save NPI 1235190448 if you need a stable reference for NANCY WILLIAMS (M.D.).
Is NANCY WILLIAMS (M.D.) currently active in the NPI registry?
CMS-published data lists NANCY WILLIAMS (M.D.) as an active registrant.
What kind of provider is NANCY WILLIAMS (M.D.)?
The page reflects Hospice and Palliative Medicine (Internal Medicine) Physician for NANCY WILLIAMS (M.D.). Clinical services aligned with this taxonomy classification.
What location shows for NANCY WILLIAMS (M.D.)?
We surface Elk City, Oklahoma for NANCY WILLIAMS (M.D.) based on available NPPES addresses.
Is NANCY WILLIAMS (M.D.) a real provider?
This page reflects official NPPES data for NPI 1235190448. Always confirm identity and privileges with the practice and licensing boards.

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