Dana Marie Oldham, D.O.
Internal Medicine Physician · Tavares, FL
Dana Marie Oldham, D.O. is an internal medicine physician with a practice address in Tavares, Florida, and NPI 1245627710, issued on Apr 22, 2015. Check the license (Florida OS15341, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Dana Marie Oldham
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS15341 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Waterman Way, Tavares, FL 32778
- Phone
- (352) 385-3032
- Enumerated
- Apr 22, 2015
- Record last updated
- May 9, 2022
- Fax
- (352) 742-3581
- Medicaid ID
- 100372400 FL
- Medicare enrollment
- Enrolled (PECOS I20180831002278); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2015
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 1000 Waterman Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Dana Marie Oldham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS15341Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average internal medicine physician in 2024
463 Medicare Part D claims for 202 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Prednisone24 claims
- Ciprofloxacin Hcl22 claims
- Hydrocodone-Acetaminophen22 claims
- Clopidogrel20 claims
- Pantoprazole Sodium17 claims
- Eliquis14 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: $63.06
3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Florida Hospital Healthcare Partners, IncTavares, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dana Marie Oldham among 10,151 internal medicine physician records in Florida
Dana Marie Oldham, D.O. is one of 10,151 internal medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2015 · median 2004 among the 6,606 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 internal medicine physician records list a practice address in Tavares
They are 29 of the 607 NPPES records with a practice address in Tavares, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Tavares → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Walter Ashford, M.D.Tavares, FL 327781376577791
- Sujatha Baskar, MDTavares, FL 327781699764910
- Miguel Boque-Santiago, MDTavares, FL 327781891801247
- Matthew Castner, DOTavares, FL 327781346259116
- Carlos Chang, M.D.Tavares, FL 327781922005016
- John Cooke, DOTavares, FL 327781528071958
- Shaik Ejazuddin, MDTavares, FL 327781073501185
- Corey Henderson, MDTavares, FL 327781346248903
Common questions
What is Dana Marie Oldham, D.O.'s NPI number?
Dana Marie Oldham, D.O.'s National Provider Identifier (NPI) is 1245627710, issued on Apr 22, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Dana Marie Oldham, D.O. located?
The NPPES record lists a practice address at 1000 Waterman Way, Tavares, FL, 32778. Phone: (352) 385-3032. Providers update this record themselves, so call before visiting.
How can I verify Dana Marie Oldham, D.O.'s license?
NPPES lists Florida license number OS15341, 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 Dana Marie Oldham, D.O. prescribe under Medicare Part D?
In 2024, Dana Marie Oldham, D.O. had 463 Medicare Part D claims for 202 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.