Mark Machen, OD
Optometrist · Marietta, GA
Mark Machen, OD is an optometrist with a practice address in Marietta, Georgia, and NPI 1740700707, issued on Jun 21, 2017. Check the license (Georgia 003025, as entered in NPPES) with the Georgia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Machen
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 003025 GA
Self-reported in NPPES; status is on the state search - Practice location
- 3535 Roswell RD Ste 8, Marietta, GA 30062
- Phone
- (678) 560-8065
- Enumerated
- Jun 21, 2017
- Record last updated
- Jun 21, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170817002982); accepts Medicare assignment
- Medical or professional school
- Southern College Of Optometry, 2017
- Entity
- Type 1 · individual
Also registered at 3535 Roswell RD Ste 8
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mital Patel, O.D.Optometrist1760715361
Verify Mark Machen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Georgia board licenses this profession
Search for license 003025Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average optometrist in 2024
57 Medicare Part D claims for 33 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Neomycin-Polymyxin-Dexameth12 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: $268.76
7 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 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
- Windward Eye CareAlpharetta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Optometrist providers in Georgia
There are 1,430 optometrist records in Georgia.
Other optometrist records in Georgia
- Sara Aamir, O.D.Canton, GA1871837153
- Geoffrey Abraham, O.D.Lawrenceville, GA1952704256
- Justin Abraham, ODAtlanta, GA1386318137
- Nhora Abril, ODRoswell, GA1891917217
- Sampson Abu, ODAtlanta, GA1982433645
- Peggy Achenbach, O.D.Waycross, GA1609846625
- Onyinyechi Achionye, ODLithonia, GA1962437707
- James Adams, ODMcDonough, GA1730144908
- Olakunle AdegbileMorrow, GA1932443470
- Agnes Adu, ODSugar Hill, GA1013034453
Common questions
What is Mark Machen, OD's NPI number?
Mark Machen, OD's National Provider Identifier (NPI) is 1740700707, issued on Jun 21, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark Machen, OD located?
The NPPES record lists a practice address at 3535 Roswell RD Ste 8, Marietta, GA, 30062. Phone: (678) 560-8065. Providers update this record themselves, so call before visiting.
How can I verify Mark Machen, OD's license?
NPPES lists Georgia license number 003025, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Machen, OD prescribe under Medicare Part D?
In 2024, Mark Machen, OD had 57 Medicare Part D claims for 33 beneficiaries; the average among optometrist prescribers was 277. 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.