Cassandra Brillhart-Green, FNP-C
Family Medicine Physician · Muskogee, OK
Cassandra Brillhart-Green, FNP-C is a family medicine physician with a practice address in Muskogee, Oklahoma, and NPI 1932776390, issued on Jun 4, 2021. Check the license (Oklahoma 202280, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Cassandra Brillhart-Green
- Credential
- FNP-C
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 202280 OK
Self-reported in NPPES; status is on the state search - Practice location
- 619 N Main St Bldg D, Muskogee, OK 74401
- Phone
- (918) 682-0222
- Enumerated
- Jun 4, 2021
- Record last updated
- Jun 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20251003001532); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,303 in Oklahoma → Look up another NPI →
Also registered at 619 N Main St Bldg D
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rocky Arrasmith, PAMedical Physician Assistant1841216520
Verify Cassandra Brillhart-Green in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 202280Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average family medicine physician in 2024
3,665 Medicare Part D claims for 241 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 54 claims were for opioids.
Most prescribed
- Lisinopril170 claims
- Atorvastatin Calcium149 claims
- Gabapentin138 claims
- Levothyroxine Sodium105 claims
- Rosuvastatin Calcium95 claims
- Albuterol Sulfate Hfa88 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $160.46
17 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Indian Health Care Resource CenterTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassandra Brillhart-Green among 2,303 family medicine physician records in Oklahoma
Cassandra Brillhart-Green, FNP-C is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 89% of them.
- NPI issued2021 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2021 · median 2008 among the 1,407 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 family medicine physician records list a practice address in Muskogee
They are 31 of the 1,769 NPPES records with a practice address in Muskogee, and 2,303 family medicine physician records in Oklahoma.
All 2,303 in Oklahoma → Every provider in Muskogee → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- James Beebe, M.D.Muskogee, OK 744011407047723
- Jason Dansby, MDMuskogee, OK 744011437151578
- John Fell, DOMuskogee, OK 744011629091640
- Jesse Geren, DOMuskogee, OK 744011679578397
- Michael Hammond, MDMuskogee, OK 744011104861616
- Margaret Hart, D.OMuskogee, OK 744011942426689
- Lynn McClintock, M.D.Muskogee, OK 744011366411282
- Brad McIntosh, MDMuskogee, OK 744011659373819
Common questions
What is Cassandra Brillhart-Green, FNP-C's NPI number?
Cassandra Brillhart-Green, FNP-C's National Provider Identifier (NPI) is 1932776390, issued on Jun 4, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Brillhart-Green, FNP-C located?
The NPPES record lists a practice address at 619 N Main St Bldg D, Muskogee, OK, 74401. Phone: (918) 682-0222. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Brillhart-Green, FNP-C's license?
NPPES lists Oklahoma license number 202280, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassandra Brillhart-Green, FNP-C prescribe under Medicare Part D?
In 2024, Cassandra Brillhart-Green, FNP-C had 3,665 Medicare Part D claims for 241 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.