NPPES file of Aug 9, 2026

James Porter Mac Millan, DO

Family Medicine Physician · Travelers Rest, SC

James Porter Mac Millan, DO is a family medicine physician with a practice address in Travelers Rest, South Carolina, and NPI 1194797290, issued on Feb 2, 2006. Check the license (South Carolina 611, as entered in NPPES) on the South Carolina Board of Medical Examiners; 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
1194797290
Name
James Porter Mac Millan
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
611 SC
Self-reported in NPPES; status is on the state search
Practice location
1588 Geer Hwy, Travelers Rest, SC 29690
Phone
(864) 729-8330
Enumerated
Feb 2, 2006
Record last updated
Apr 7, 2026
Medicaid ID
T00291 SC
Medicare enrollment
Enrolled (PECOS I20070509000380); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1588 Geer Hwy

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

  1. Lili Chen, FNP-BCFamily Nurse Practitioner1699105411
  2. Deanna Cotter, MDFamily Medicine Physician1841368826
  3. John Cotter, MDFamily Medicine Physician1548328271
  4. Andrea Smith, MDFamily Medicine Physician1619261393
  5. Heather Whisnant, FNP-CFamily Nurse Practitioner1538460688

Verify James Porter Mac Millan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 611
    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 South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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62% fewer Medicare Part D claims than the average family medicine physician in 2024

1,359 Medicare Part D claims for 291 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. James Mac Millan1,359
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium110 claims
  2. Lisinopril73 claims
  3. Amlodipine Besylate67 claims
  4. Levothyroxine Sodium54 claims
  5. Losartan Potassium52 claims
  6. Omeprazole52 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.

Bills Medicare through one group practice

  1. New Horizon Family Health Services IncGreer, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James Porter Mac Millan among 2,700 family medicine physician records in South Carolina

James Porter Mac Millan, DO is one of 2,700 family medicine physician records with a practice address in South Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 53% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1988 · median 2006 among the 1,638 with a school on file
  • Record last updated2026 · 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 207Q00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family medicine physician records list a practice address in Travelers Rest

They are 20 of the 197 NPPES records with a practice address in Travelers Rest, and 2,700 family medicine physician records in South Carolina.

The 8 family medicine physician records with the nearest ZIP codes

  1. Amanda Austin, DOTravelers Rest, SC 296901548584204
  2. Glenn Brothers, DOTravelers Rest, SC 296901871549055
  3. Kristi Cabiao, D.OTravelers Rest, SC 296901598034209
  4. Stanley Coleman, M.D.Travelers Rest, SC 296901649206459
  5. Deanna Cotter, MDTravelers Rest, SC 296901841368826
  6. John Cotter, MDTravelers Rest, SC 296901548328271
  7. Ricky Davidson, MDTravelers Rest, SC 296901942246707
  8. James Gettys, M.D.Travelers Rest, SC 296901912940586

Common questions

What is James Porter Mac Millan, DO's NPI number?

James Porter Mac Millan, DO's National Provider Identifier (NPI) is 1194797290, issued on Feb 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Porter Mac Millan, DO located?

The NPPES record lists a practice address at 1588 Geer Hwy, Travelers Rest, SC, 29690. Phone: (864) 729-8330. Providers update this record themselves, so call before visiting.

How can I verify James Porter Mac Millan, DO's license?

NPPES lists South Carolina license number 611, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Porter Mac Millan, DO prescribe under Medicare Part D?

In 2024, James Porter Mac Millan, DO had 1,359 Medicare Part D claims for 291 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.