Mark A. Greer, OD
- Medicare patients, 2024
- 377
- Part D claims, 2024
- 539
- Industry payments
- $366
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 8614 Westwood Center Dr, Vienna, VA 22182
- Practice phone
- Call (704) 545-9797
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Myeyedr
Eye care practice · Vienna, Virginia
Find Mark Greer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mark A. Greer is an optometrist in Vienna, Virginia
Mark Greer practices at Myeyedr in Vienna, Virginia.
Mark Greer's NPI, 1154372266, was assigned on May 13, 2006. Mark Greer graduated from Southern College of Optometry in 1987. Mark Greer holds Tennessee license 1174.
- NPI
- 1154372266NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092803254
- NPI enumeration date
- May 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (704) 545-9797
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark A. Greer practices at Myeyedr in Vienna, Virginia
Mark Greer's primary practice is Myeyedr, at 8614 Westwood Center Dr, Vienna, VA 22182. The practice phone is (704) 545-9797.
- Myeyedr8614 Westwood Center Dr, Vienna, VA 22182Phone(704) 545-9797
Source: Dmand AI Affiliation Data
Mark A. Greer is affiliated with 2 sites of care and 2 medical groups
Mark Greer's primary practice is Myeyedr in Vienna, Virginia. Dmand AI also links Mark Greer to 2 medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mark A. Greer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Greer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Myeyedr | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark A. Greer is one of 2,487 optometrists in Virginia
Optometrist is Mark Greer's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Mark Greer is licensed in Tennessee.
Specialties and state licenses
- Optometrist, TennesseePrimary
Optometrists near Mark Greer
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mark A. Greer treated 377 Medicare patients in 2024, average age 76
CMS counts 377 Medicare patients who saw Mark Greer in 2024. The largest group is 65 to 74, with 185 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Greer's median patient age at 71, with 54% women.
Mark Greer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mark Greer's Medicare patients by sex, 2024
- Women20655%
- Men17145%
Chronic conditions among Mark Greer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Diabetes33%
- Chronic kidney disease24%
- Mood disorders22%
- Depression21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Mark Greer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark A. Greer wrote 539 Medicare Part D claims in 2024
In 2024, Mark Greer wrote 539 Medicare Part D claims for 125 patients. 73% of them were for generic drugs.
Mark Greer's Part D claims by kind of drug, 2024
- Generic392 claims73%
- Brand-name147 claims27%
Drug classes CMS tracks in Mark Greer's Part D claims, 2024
- Antibiotics2%11 of 539 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Mark A. Greer ranks in the 53rd percentile for cataract surgery in Medicare
Mark Greer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 30 procedures of cataract surgery by Mark Greer, more than 53% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Mark Greer ranks in Medicare procedure volume
- Cataract surgery
- 53rd percentile30 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Mark A. Greer received $366 in industry payments in 2025
CMS Open Payments shows 3 general payments to Mark Greer from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $244.
Companies that paid Mark Greer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark A. Greer graduated from Southern College of Optometry
Mark Greer graduated from Southern College of Optometry in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark A. Greer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mark A. Greer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark A. Greer's NPI number?
Mark A. Greer's NPI number is 1154372266. It was assigned on May 13, 2006, and it is active in the NPI Registry.
What does Mark A. Greer specialize in?
Mark A. Greer is an optometrist in Vienna, Virginia. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Mark A. Greer practice?
Mark Greer practices at 8614 Westwood Center Dr, Vienna, VA 22182. Mark Greer's primary practice is Myeyedr in Vienna, Virginia. Dmand AI also links Mark Greer to 2 medical groups and 1 group practice or clinic.
What is Mark A. Greer's office phone number?
The practice phone on file for Mark Greer is (704) 545-9797.
What is Mark A. Greer's medical license number?
Mark Greer holds Tennessee license 1174.
Does Mark A. Greer accept Medicare?
Yes. CMS lists Mark Greer as accepting Medicare assignment.
How many Medicare patients does Mark A. Greer see?
CMS counts 377 Medicare patients who saw Mark Greer in 2024, with an average age of 76.
Where did Mark A. Greer go to medical school?
Mark Greer graduated from Southern College of Optometry in 1987.
Has Mark A. Greer received payments from drug or device companies?
CMS Open Payments shows $366 in general payments to Mark Greer from 2 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Mark A. Greer been practicing?
Mark Greer graduated from medical school in 1987, 39 years ago.
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