DR. SERGIO G DEMIER (D.O.) – Family Medicine Physician, NPI 1558422337

DR. SERGIO G DEMIER (D.O.) is a healthcare provider. based in Seminole, Oklahoma. specializing in FAMILY PRACTICE, EMERGENCY MEDICINE. They hold the professional credentials D.O.. They hold a License No. 3350 (OK). The NPI Number for DR. SERGIO G DEMIER (D.O.) is 1558422337

Main info

Male
33 Years Of Experience
Accepts Medicare Assignment
Name
DR. SERGIO G DEMIER (D.O.)
NPI
1558422337
Phone
(405) 382-4939
Address
2403 W WRANGLER BLVD STE A
Enumeration Date
13 December 2006
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
OKLAHOMA STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Secondary Phone
5803386515
Graduation Year
1993 (33 years ago)
PAC ID
4587620802
Group Practice PAC ID
5395647655
Professional Enrollment ID
I20041208000087
Address ID
OK739424438GU520XXDRXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

1,775 FAMILY PRACTICE in OK

Provider Addresses for DR. SERGIO G DEMIER (D.O.)

  • 2403 W WRANGLER BLVD STE A

    SEMINOLE, OK 748681900

    Phone: (405) 382-4939

    Fax: (405) 382-4947

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2004-12-08

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

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
I20041208000087IFamily PracticeOKTBD

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
99284Emergency department visit with moderate level of medical decision making179148$0
99283Emergency department visit with low level of medical decision making6056$0
99285Emergency department visit with high level of medical decision making3434$0
View full utilization report →

Insurance plans in this area (ZIP 74868)

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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: 5395647655View full group profile
NameSpecialtyState
Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine, Nuclear MedicineOK
Hospitalist, Emergency Medicine, Family PracticeKS
Emergency MedicineOK
-TX
Nurse PractitionerOK
-OK
Family PracticeOK
Nurse PractitionerOK
Nurse PractitionerOK
Emergency MedicineOK

Reviews

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Frequently asked questions

What number should I use to identify DR. SERGIO G DEMIER (D.O.) for billing?
Administrative and clinical systems typically use NPI 1558422337 for DR. SERGIO G DEMIER (D.O.).
Should I treat DR. SERGIO G DEMIER (D.O.) as an active provider?
Patients and plans typically see DR. SERGIO G DEMIER (D.O.) as active in the national extract.
What does the directory say DR. SERGIO G DEMIER (D.O.) does?
Insurance directories may phrase it differently, but here DR. SERGIO G DEMIER (D.O.) maps to Family Medicine Physician. Clinical services aligned with this taxonomy classification.
Which community is linked to DR. SERGIO G DEMIER (D.O.)?
DR. SERGIO G DEMIER (D.O.) shows a connection to Seminole, Oklahoma in registry-derived data.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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