Margaret Macmillan, D.O.
Internal Medicine Physician · Rockledge, FL
Margaret Macmillan, D.O. is an internal medicine physician with a practice address in Rockledge, Florida, and NPI 1265682462, issued on Sep 24, 2008. Check the license (Florida OS 10694, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Margaret Macmillan
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS 10694 FL
Self-reported in NPPES; status is on the state search - Practice location
- 3190 Suntree Blvd., Rockledge, FL 32955
- Phone
- (321) 253-2206
- Enumerated
- Sep 24, 2008
- Record last updated
- Sep 15, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (321) 610-7599
- Medicaid ID
- 002660500 FL
- Medicare enrollment
- Enrolled (PECOS I20150622000683); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Verify Margaret Macmillan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS 10694Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
394 Medicare Part D claims for 167 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Cefdinir21 claims
- Furosemide21 claims
- Amoxicillin-Clavulanate Potass18 claims
- Nitroglycerin16 claims
- Amlodipine Besylate15 claims
- Carvedilol15 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): 87.1 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: $61.82
3 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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
- Comprehensive Hospitalists OF MS, LLCOxford, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Macmillan among 10,151 internal medicine physician records in Florida
Margaret Macmillan, 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 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2007 · median 2004 among the 6,606 with a school on file
- Record last updated2011 · 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).
22 internal medicine physician records list a practice address in Rockledge
They are 22 of the 1,060 NPPES records with a practice address in Rockledge, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Rockledge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bobby Abraham, MDRockledge, FL 329551780606541
- Nabil Aziz, M.D.Rockledge, FL 329551780675405
- Tully Blalock, MDRockledge, FL 329551417004359
- Apolinar Henriquez, M.D.Rockledge, FL 329551699748780
- George Idiculla, MDRockledge, FL 329551891806642
- Vinay Kumar, MDRockledge, FL 329551184616849
- Sasi Kumar, M.D.Rockledge, FL 329551649202862
- Luis Martinez, MDRockledge, FL 329551629115100
Common questions
What is Margaret Macmillan, D.O.'s NPI number?
Margaret Macmillan, D.O.'s National Provider Identifier (NPI) is 1265682462, issued on Sep 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Macmillan, D.O. located?
The NPPES record lists a practice address at 3190 Suntree Blvd., Rockledge, FL, 32955. Phone: (321) 253-2206. Providers update this record themselves, so call before visiting.
How can I verify Margaret Macmillan, D.O.'s license?
NPPES lists Florida license number OS 10694, 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 Margaret Macmillan, D.O. prescribe under Medicare Part D?
In 2024, Margaret Macmillan, D.O. had 394 Medicare Part D claims for 167 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Margaret Macmillan, D.O.'s MIPS final score?
The 2023 MIPS final score is 87.1 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.