Spencer K. Sullivan, MD
Pediatric Hematology & Oncology Physician · Madison, MS
Spencer K. Sullivan, MD is a pediatric hematology & oncology physician with a practice address in Madison, Mississippi, and NPI 1073735114, issued on May 2, 2007. Check the license (Mississippi 23304, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Spencer K. Sullivan
- Credential
- MD
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License number
- 23304 MS
Self-reported in NPPES; status is on the state search - Practice location
- 7730 Old Canton RD Bldg B, Madison, MS 39110
- Phone
- (601) 499-0935
- Enumerated
- May 2, 2007
- Record last updated
- Apr 14, 2025
- Fax
- (601) 499-0936
- Medicaid ID
- 01212067 MS
- Entity
- Type 1 · individual
8 nearest pediatric hematology & oncology physician records → All 12 in Mississippi → Look up another NPI →
Also registered at 7730 Old Canton RD Bldg B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie Rudsenske, MDAllergy & Immunology Physician1710483532
- Patricia Stewart, M.D.Allergy & Immunology Physician1689803918
Verify Spencer K. Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 23304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.8 times the Medicare Part D claims of the average pediatric hematology & oncology physician in 2024
544 Medicare Part D claims for 38 beneficiaries, against an average of 94 among the 300 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 276 claims were for opioids.
Most prescribed
- Oxycodone Hcl155 claims
- Promethazine Hcl46 claims
- Gabapentin41 claims
- Oxycodone-Acetaminophen29 claims
- Deferasirox27 claims
- Methadone Hcl24 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: $5,826.34
10 payments; by number, the most common kind was consulting fee; the largest payer was Csl Behring. The 1,215 providers of this specialty with any payment received $7,404.07 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.
Spencer K. Sullivan among 12 pediatric hematology & oncology physician records in Mississippi
Spencer K. Sullivan, MD is one of 12 pediatric hematology & oncology physician records with a practice address in Mississippi. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 25% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Hematology & Oncology Physician providers in Mississippi
There are 12 pediatric hematology & oncology physician records in Mississippi.
All 12 in Mississippi → Every provider in Madison → Pediatric Hematology & Oncology Physician nationwide →
The 8 pediatric hematology & oncology physician records with the nearest ZIP codes
- Laura Arnold, M.D.Jackson, MS 392161467716837
- Catherine Gordon, M.D.Jackson, MS 392161346349487
- Betty Herrington, MDJackson, MS 392161437363967
- Rathi Iyer, M.D.Jackson, MS 392161598709354
- Melissa McNaull, MDJackson, MS 392161558458695
- D. Pullen, M.D.Jackson, MS 392161750306767
- Mary Smith, M.D.Jackson, MS 392161477597458
- Amanda Strobel, M.D.Jackson, MS 392161164719597
Common questions
What is Spencer K. Sullivan, MD's NPI number?
Spencer K. Sullivan, MD's National Provider Identifier (NPI) is 1073735114, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Spencer K. Sullivan, MD located?
The NPPES record lists a practice address at 7730 Old Canton RD Bldg B, Madison, MS, 39110. Phone: (601) 499-0935. Providers update this record themselves, so call before visiting.
How can I verify Spencer K. Sullivan, MD's license?
NPPES lists Mississippi license number 23304, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Spencer K. Sullivan, MD prescribe under Medicare Part D?
In 2024, Spencer K. Sullivan, MD had 544 Medicare Part D claims for 38 beneficiaries; the average among pediatric hematology & oncology physician prescribers was 94. 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.