Cassandra Natalie Grenade, M.D.
Hematology & Oncology Physician · Delaware, OH
Cassandra Natalie Grenade, M.D. is a hematology & oncology physician with a practice address in Delaware, Ohio, and NPI 1770744807, issued on Jun 20, 2008. Check the license (Ohio 350999055, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Cassandra Natalie Grenade
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 350999055 OH
Self-reported in NPPES; status is on the state search - Practice location
- 801 Ohiohealth Blvd, Delaware, OH 43015
- Phone
- (740) 615-0227
- Enumerated
- Jun 20, 2008
- Record last updated
- Nov 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (740) 615-0255
- Medicare enrollment
- Enrolled (PECOS I20140709001831); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 513 in Ohio → Look up another NPI →
Also registered at 801 Ohiohealth Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffery Madachy, DOFamily Medicine Physician1124369483
- Karen Tackett, APRN-CNPNurse Practitioner1609279546
Verify Cassandra Natalie Grenade in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 350999055Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,214 Medicare Part D claims for 243 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 89 claims were for opioids.
Most prescribed
- Letrozole146 claims
- Prochlorperazine Maleate71 claims
- Anastrozole64 claims
- Gabapentin48 claims
- Eliquis47 claims
- Oxycodone Hcl44 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $24.32
1 payment: food and beverage; the largest payer was Eisai Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Ohiohealth CorporationDelaware, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassandra Natalie Grenade among 513 hematology & oncology physician records in Ohio
Cassandra Natalie Grenade, M.D. is one of 513 hematology & oncology physician records with a practice address in Ohio. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2008 · median 2001 among the 369 with a school on file
- Record last updated2019 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Ohio
There are 513 hematology & oncology physician records in Ohio.
All 513 in Ohio → Every provider in Delaware → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Parthib Das, MDMarysville, OH 430401922569581
- Husain Rasheed, M.D.Mount Vernon, OH 430501437144029
- Chaoyang Li, M.D.New Albany, OH 430541376589515
- Aruna Gowda, M.D.Newark, OH 430551407070576
- Jacqueline JonesNewark, OH 430551134127038
- D'Anna Mullins, M.D., PH.D.Newark, OH 430551790946861
- Stanley Balcerzak, M.D.Sunbury, OH 430741972935716
- Christopher George, M.D.Westerville, OH 430821679579981
Common questions
What is Cassandra Natalie Grenade, M.D.'s NPI number?
Cassandra Natalie Grenade, M.D.'s National Provider Identifier (NPI) is 1770744807, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Natalie Grenade, M.D. located?
The NPPES record lists a practice address at 801 Ohiohealth Blvd, Delaware, OH, 43015. Phone: (740) 615-0227. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Natalie Grenade, M.D.'s license?
NPPES lists Ohio license number 350999055, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassandra Natalie Grenade, M.D. prescribe under Medicare Part D?
In 2024, Cassandra Natalie Grenade, M.D. had 1,214 Medicare Part D claims for 243 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Cassandra Natalie Grenade, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.