DR. MARTIN OLEJCEK (MD) – Hospitalist Physician, NPI 1407963903

DR. MARTIN OLEJCEK (MD) is a healthcare provider. based in Mason city, Iowa. specializing in INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. 34374 (IA). The NPI Number for DR. MARTIN OLEJCEK (MD) is 1407963903

Main info

Male
32 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARTIN OLEJCEK (MD)
NPI
1407963903
Phone
(641) 494-3041
Address
621 S ILLINOIS AVE
Enumeration Date
23 August 2006
Last Update Date
15 May 2008

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6153381000
Graduation Year
1994 (32 years ago)
PAC ID
3375502503
Group Practice PAC ID
2365807633
Professional Enrollment ID
I20080529000027
Address ID
TN370752479HE355XXRDXX504
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

3,526 INTERNAL MEDICINE in TN

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Provider Addresses for DR. MARTIN OLEJCEK (MD)

  • Mercy Family Clinic - Regency, 621, South Illinois Avenue, Regency, Mason City, Cerro Gordo County, Iowa, 50401, United States

    SUITE 103

    MASON CITY, IA 504015489

    Phone: (641) 494-3041

    Fax: (641) 494-3059

    Type: Mailing

  • TriStar Hendersonville, 355, New Shackle Island Road, Highland Acres, Hendersonville, Sumner County, Tennessee, 37075, United States

    HENDERSONVILLE, TN 370752300

    Phone: (615) 338-1000

    Fax: (615) 338-1101

    Type: Location

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: 2008-05-29

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
I20080529000027IInternal MedicineTNTBD

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
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes12652$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes9536$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes4040$0
99239Hospital discharge day management, more than 30 minutes3230$0
99238Hospital discharge day management, 30 minutes or less1212$0
View full utilization report →

Insurance plans in this area (ZIP 50401)

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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: 2365807633View full group profile
NameSpecialtyState
Internal MedicineTN
Internal Medicine, Infectious DiseaseTN
Internal Medicine, HospitalistMI
Internal MedicineNY
Internal MedicineTN
Internal MedicineTN
Internal MedicineIL
Family PracticeTN
Internal MedicineFL
Internal Medicine, HospitalistFL

Reviews

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Frequently asked questions

Does DR. MARTIN OLEJCEK (MD) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — DR. MARTIN OLEJCEK (MD) uses 1407963903.
Is DR. MARTIN OLEJCEK (MD) still practicing?
DR. MARTIN OLEJCEK (MD) is currently listed as active in the public NPI registry.
What healthcare role does DR. MARTIN OLEJCEK (MD) hold?
Scheduling teams often label DR. MARTIN OLEJCEK (MD) under Hospitalist Physician. Clinical services aligned with this taxonomy classification.
What area does DR. MARTIN OLEJCEK (MD) serve?
DR. MARTIN OLEJCEK (MD)'s listing highlights Mason City, Iowa; more addresses can appear in NPPES.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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