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MR. CASMIR COSMAS MASEGA AGACNP-AG
NPI 1326775198
Nurse Practitioner in Columbia, MO

Active since August 02, 2022PECOS EnrolledAccepts Medicare Assignment
1 HOSPITAL DR, COLUMBIA, MO 65212(573) 882-1515(573) 884-4249 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 11, 2026, Jul 23, 2024, Aug 2, 2022 (3 updates tracked since 2022).

About Mr. Casmir Cosmas Masega Agacnp-ag NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. CASMIR COSMAS MASEGA AGACNP-AG (NPI 1326775198) is an individual nurse practitioner in Columbia, Missouri, licensed in Missouri (2026030934) and active in the NPI registry since August 2022. He is enrolled in Medicare PECOS, is affiliated with Comanche County Memorial Hospital, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1326775198
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMR. CASMIR COSMAS MASEGACredential: AGACNP-AG
Location Address1 HOSPITAL DRColumbia, MO 65212-1000
Mailing AddressPo Box 843966Kansas City, MO 64184-3966 · (573) 884-3300 · Fax (573) 884-0943
Phone(573) 882-1515
Fax(573) 884-4249
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateAugust 2, 2022
Last NPPES UpdateAugust 11, 20263 updates tracked since enumeration
NPPES CertifiedAugust 11, 2026
✔ NPI 1326775198 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MO · 2026030934
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · Acute CareTaxonomy 363LA2100X · License 1080183 (TX)
Also ListedNurse Practitioner · Critical Care MedicineTaxonomy 363LC0200X · License 1080183 (TX)
1 HOSPITAL DR, Columbia, MO 65212
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, Cigna Healthcare and more.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

Mr. Casmir Cosmas Masega Agacnp-ag 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.

PECOS PAC ID7315310414
PECOS Enrollment IDI20230309002255, I20250929000581
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Casmir Masega reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Curators Of The University Of Missouri
0.1 mi
Multi-Specialty
1 HOSPITAL DR
Columbia, MO 65212
  • Reassigned Medicare billing, Missouri enrollment
  • 1,395 clinicians in this Medicare group
NPI 1235126921 (573) 882-4141
Ou Health Partners, Inc
372 mi
Multi-Specialty
1200 CHILDRENS AVE STE 11200
Oklahoma City, OK 73104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 1,795 clinicians in this Medicare group
NPI 1528642642 (405) 271-3932
Dallas Pulmonary & Critical Care PA
495 mi
Critical Care Medicine
221 W COLORADO BLVD STE 525
Dallas, TX 75208
  • Reassigned Medicare billing, Texas enrollment
  • 254 clinicians in this Medicare group
NPI 1235402728 (214) 960-5681
Hospitalist Medicine Physicians Of Texas, PLLC
639 mi
Internal Medicine
18951 N MEMORIAL DR
Humble, TX 77338
  • Reassigned Medicare billing, Texas enrollment
  • 2,009 clinicians in this Medicare group
NPI 1629307095 (281) 540-7700

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 3

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
28 services28 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
21 services21 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
15 services14 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Comanche County Memorial Hospital

Acute Care Hospitals · Lawton, OK
1/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number370056
Location3401 West Gore BlvdLawton, OK 73505 · Comanche County
Emergency services Birthing friendly

O U Medical Center

Acute Care Hospitals · Oklahoma City, OK
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370093
Location700 NE 13th StreetOklahoma City, OK 73104 · Oklahoma County
Emergency services Birthing friendly

Texas Health Hospital Mansfield

Acute Care Hospitals · Mansfield, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number670309
Location2300 Lone Star RoadMansfield, TX 76063 · Tarrant County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 65212 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.64 typical visit price
range $52.28 – $161.24
Typical copayment $20.41 (range $13.07 – $40.31)
Most-billed visit code 99203
Established Patient
$93.24 typical visit price
range $16.30 – $131.05
Typical copayment $23.31 (range $4.07 – $32.76)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. RAHUL JAIN M.D.
Internal Medicine (Clinical Cardiac Electrophysiology)
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 884-2296
MR. GHULAM GHOUS M.D
Internal Medicine (Hematology & Oncology)
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 884-9066
RYLEE SHAWN DUCKWORTH M.D.
Emergency Medicine
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 884-4400
RYAN DANIEL MONTGOMERY M.D.
Anesthesiology
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 882-2568
MS. MORGAN L LEWIS PA
Physician Assistant
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 882-8091
ALONA KATZIR MD
Orthopaedic Surgery (Orthopaedic Trauma)
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 882-2663
ASHRAF NAYEF MOSLEH ALSAWAREAH MD
Psychiatry & Neurology (Neurology)
1 HOSPITAL DR
COLUMBIA, MO 65212
Boone County (573) 882-5092
DR. OLEKSIY MYKHAYLOVYCH ZYERNOV M.D.
Anesthesiology
1 HOSPITAL DR, DC056.20
COLUMBIA, MO 65212
Boone County (573) 882-2568

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 Casmir Masega's NPI number?

The NPI number for Casmir Masega is 1326775198. It was assigned to this individual provider in the NPPES registry on August 2, 2022.

Where is Casmir Masega located?

Casmir Masega practices at 1 Hospital Dr, Columbia, MO 65212. The listed phone number is (573) 882-1515.

What is Casmir Masega's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Casmir Masega enrolled in Medicare?

Yes. Casmir Masega 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 Casmir Masega's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Casmir Masega reassigns Medicare benefits to 4 organizations: The Curators Of The University Of Missouri (Columbia, MO), Ou Health Partners, Inc (Oklahoma City, OK), Dallas Pulmonary & Critical Care PA (Dallas, TX) and Hospitalist Medicine Physicians Of Texas, PLLC (Humble, TX). 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 Casmir Masega's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Casmir Masega accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, Cigna Healthcare, Imperial Insurance Companies, Inc. and Mending Health and 2 other insurers list Casmir Masega 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 Casmir Masega affiliated with any hospitals?

According to CMS data, Casmir Masega is affiliated with Comanche County Memorial Hospital, O U Medical Center and Texas Health Hospital Mansfield.

When was this NPI record last updated?

The NPPES record for Casmir Masega was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.