NPPES file of Aug 9, 2026

Mark Donald Schellhammer, D.O.

Specialist · Ocoee, FL

Mark Donald Schellhammer, D.O. is a specialist with a practice address in Ocoee, Florida, and NPI 1568567766, issued on Sep 13, 2006. Check the license (Florida OS0006516, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568567766
Name
Mark Donald Schellhammer
Credential
D.O.
Primary taxonomy
Specialist 174400000X
License number
OS0006516 FL
Self-reported in NPPES; status is on the state search
Practice location
1555 Boren Dr, Ocoee, FL 34761
Phone
(407) 292-2156
Enumerated
Sep 13, 2006
Record last updated
Dec 31, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(407) 241-2868
Medicaid ID
378178000 FL
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1555 Boren Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Leonard Burr, PTAPhysical Therapy Assistant1225296197
  2. Mary Cameron, PA-CPhysician Assistant1407987886
  3. Anne Carter, MDSpecialist1982704987
  4. Carlie Dzin, ATC, LATAthletic Trainer1740626670
  5. Andre Ishmael, PTOrthopedic Physical Therapist1578972436
  6. Stacey Wong, PTAPhysical Therapy Assistant1245498179

Verify Mark Donald Schellhammer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license OS0006516    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

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88% fewer Medicare Part D claims than the average specialist in 2024

160 Medicare Part D claims for 32 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Mark Schellhammer160
  2. Specialty average1,380

Most prescribed

  1. Progesterone21 claims
  2. Buprenorphine-Naloxone18 claims
  3. Testosterone Cypionate13 claims
  4. Prednisone12 claims
  5. Dextroamphetamine-Amphetamine11 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.

Specialist providers in Florida

There are 2,685 specialist records in Florida.

All 2,685 in Florida → Every provider in Ocoee →

Other specialist records in Florida

  1. Cory Abbate, DPTNorth Miami, FL1487962999
  2. David AbbottClearwater, FL1700196516
  3. Michael Abdoney, DDSTampa, FL1942460076
  4. Farhan Abid, M.D.Pembroke Pines, FL1003077421
  5. Shagen Abovyan, MDFort Lauderdale, FL1285827139
  6. Brown AbrahamWest Palm Beach, FL1295268464
  7. Sara Abrams, DPTFernandina Beach, FL1982817607
  8. Andino Abril, MDTamarac, FL1073525143
  9. Rassoul AbtahiHialeah, FL1891966438
  10. Rajab Abukhadrah, M.D.Clermont, FL1023083896

Common questions

What is Mark Donald Schellhammer, D.O.'s NPI number?

Mark Donald Schellhammer, D.O.'s National Provider Identifier (NPI) is 1568567766, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Donald Schellhammer, D.O. located?

The NPPES record lists a practice address at 1555 Boren Dr, Ocoee, FL, 34761. Phone: (407) 292-2156. Providers update this record themselves, so call before visiting.

How can I verify Mark Donald Schellhammer, D.O.'s license?

NPPES lists Florida license number OS0006516, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Donald Schellhammer, D.O. prescribe under Medicare Part D?

In 2024, Mark Donald Schellhammer, D.O. had 160 Medicare Part D claims for 32 beneficiaries; the average among specialist prescribers was 1,380. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.