Dr. Marc Douglas Shields, MD
- Medicare services, 2024
- 3,704
- Medicare patients, 2024
- 1,897
- Part D claims, 2024
- 1,677
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1500 Commerce Rd, Staunton, VA 24401-9032
- Practice phone
- Call (540) 213-7720
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eye One, Plc
Eye care practice · Staunton, Virginia
Find Dr. Shields' professional email, personal email and mobile number
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Dr. Marc Douglas Shields is an ophthalmologist in Staunton, Virginia
Dr. Shields practices at Eye One, Plc in Staunton, Virginia.
Dr. Shields' NPI, 1265435226, was assigned on May 24, 2005. Dr. Shields graduated from University of Louisville School of Medicine in 1998. Dr. Shields holds Virginia license 0101236216.
- NPI
- 1265435226NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133109010
- NPI enumeration date
- May 24, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (540) 213-7720
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc Douglas Shields practices at Eye One, Plc in Staunton, Virginia
Dr. Shields' primary practice is Eye One, Plc, at 1500 Commerce Rd, Staunton, VA 24401-9032. The practice phone is (540) 213-7720.
- Eye One, Plc1500 Commerce Rd, Staunton, VA 24401-9032Phone(540) 213-7720
Source: Dmand AI Affiliation Data
Dr. Marc Douglas Shields is affiliated with 2 sites of care and 1 medical group
Dr. Shields' primary practice is Eye One, Plc in Staunton, Virginia. Dr. Shields is also affiliated with Augusta Health. Dmand AI also links Dr. Shields to 1 more medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Marc Douglas Shields' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shields practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eye One, Plc | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc Douglas Shields is one of 504 ophthalmologists in Virginia
Ophthalmology is Dr. Shields' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Shields is licensed in Virginia.
Specialties and state licenses
- Ophthalmology, VirginiaPrimary
Ophthalmologists near Dr. Shields
Counts of ophthalmologists 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
Dr. Marc Douglas Shields billed Medicare for 3,704 services in 2024
CMS data shows 3,704 Medicare services from Dr. Shields across 24 procedure codes in 2024, for 1,897 Medicare patients. Medicare paid $267,344 for them.
Dr. Shields' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,9982024: 2,7728%
- Office and hospital visits
- 2023: 2622024: 533103%
- Surgery
- 2023: 2482024: 2511%
- Other services
- 2023: 02024: 124
- Imaging
- 2023: 112024: 24118%
Where Dr. Shields' Medicare services took place, 2024
- In an office3,65599%
- In a facility491%
Dr. Shields compared with the Virginia median for ophthalmologists, 2024
- Dr. Shields
- Virginia median
- Medicare services
- 3,704vs 1,92493% above
- Medicare patients
- 1,897vs 7802.4 times
- Part D claims
- 1,570vs 5223.0 times
Medians across 517 ophthalmologists in Virginia with Dmand AI profiles that report each measure.
Dr. Shields' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Shields?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shields and other ophthalmologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marc Douglas Shields treated 1,897 Medicare patients in 2024, average age 75
CMS counts 1,897 Medicare patients who saw Dr. Shields in 2024. The largest group is 65 to 74, with 926 patients. 74% of them have high blood pressure, and 73% have high cholesterol. 3% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shields' median patient age at 71, with 59% women.
Dr. Shields' Medicare patients by age, 2024
Dr. Shields' Medicare patients by sex, 2024
- Women1,12559%
- Men77241%
Chronic conditions among Dr. Shields' Medicare patients, 2024
- High blood pressure74%
- High cholesterol73%
- Arthritis43%
- Diabetes28%
- Chronic kidney disease21%
- Anxiety20%
- Ischemic heart disease20%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shields' 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
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc Douglas Shields wrote 1,677 Medicare Part D claims in 2024
In 2024, Dr. Shields wrote 1,677 Medicare Part D claims for 623 patients. 92% of them were for generic drugs. CMS names the drug for 1,570 of them, across 9 drugs with 11 or more claims each, at $19,781 in total drug cost. In 2023, CMS named 1,408 claims across 9 drugs.
Dr. Shields' Part D claims by kind of drug, 2024
- Generic1,542 claims92%
- Brand-name135 claims8%
Dr. Shields' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Shields' Part D claims, 2024
- Antibiotics2%26 of 1,677 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4082024: 1,57012%
Drugs named by CMS: 9 in 2024, 9 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Marc Douglas Shields ranks in the 67th percentile for melanoma (skin cancer) excision in Medicare
Dr. Shields accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 13 procedures of melanoma (skin cancer) excision by Dr. Shields, more than 67% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Shields ranks in Medicare procedure volume
- Cataract surgery
- 40th percentile16 procedures
- Melanoma (skin cancer) excision
- 67th percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Marc Douglas Shields has 1 publication on record
Dmand AI links 1 paper to Dr. Shields in 2019. Dr. Shields' most frequent co-authors are John Jing-Wei Chen, MD, PhD, Yasaman Mohadjer, MD and Angeline Michelle Nguyen, MD.
Dr. Shields' most frequent co-authors
- John Jing-Wei Chen, MD, PhD1 shared paper
- Yasaman Mohadjer, MD1 shared paper
- Angeline Michelle Nguyen, MD1 shared paper
Recent publications by Dr. Shields
See who Dr. Shields researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shields works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marc Douglas Shields received $1,289 in industry payments from 2016 to 2025
CMS Open Payments shows 49 general payments to Dr. Shields from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Horizon Pharma plc paid the most, $237.
General payments to Dr. Shields by program year, 2016 to 2025
General payments to Dr. Shields by kind, 2016 to 2025
- Food and beverage$1,25197%
- Education$383%
Companies that paid Dr. Shields the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marc Douglas Shields graduated from University of Louisville School of Medicine
Dr. Shields graduated from University of Louisville School of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marc Douglas Shields'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Marc Douglas Shields
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Marc Douglas Shields' NPI number?
Dr. Marc Douglas Shields' NPI number is 1265435226. It was assigned on May 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc Douglas Shields?
Dr. Marc Douglas Shields is an ophthalmologist in Staunton, Virginia. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Marc Douglas Shields practice?
Dr. Shields practices at 1500 Commerce Rd, Staunton, VA 24401-9032. Dr. Shields' primary practice is Eye One, Plc in Staunton, Virginia. Dmand AI also links Dr. Shields to 1 medical group.
What is Dr. Marc Douglas Shields' office phone number?
The practice phone on file for Dr. Shields is (540) 213-7720.
What is Dr. Marc Douglas Shields' medical license number?
Dr. Shields holds Virginia license 0101236216.
Which hospitals is Dr. Marc Douglas Shields affiliated with?
Dr. Shields is affiliated with Augusta Health.
Does Dr. Marc Douglas Shields accept Medicare?
Yes. CMS data shows Dr. Shields billed Medicare for 3,704 services in 2024, and Dr. Shields accepts Medicare assignment.
How many Medicare patients does Dr. Marc Douglas Shields see?
CMS counts 1,897 Medicare patients who saw Dr. Shields in 2024, with an average age of 75.
What services does Dr. Marc Douglas Shields bill to Medicare?
In 2024, Dr. Shields' most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and eye exam or test (92083).
Where did Dr. Marc Douglas Shields go to medical school?
Dr. Shields graduated from University of Louisville School of Medicine in 1998.
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What drugs does Dr. Marc Douglas Shields prescribe most?
In 2024 Medicare Part D data, Dr. Shields' most prescribed drugs by claims were Latanoprost, Erythromycin and Timolol Maleate.
Has Dr. Marc Douglas Shields received payments from drug or device companies?
CMS Open Payments shows $1,289 in general payments to Dr. Shields from 14 companies from 2016 to 2025. The largest total came from Horizon Pharma plc.
How long has Dr. Marc Douglas Shields been practicing?
Dr. Shields graduated from medical school in 1998, 28 years ago.
Does Dr. Marc Douglas Shields do research?
Dmand AI links 1 publication to Dr. Shields.
Who does Dr. Marc Douglas Shields publish with?
Dr. Shields' most frequent co-authors are John Jing-Wei Chen, MD, PhD (1 shared paper), Yasaman Mohadjer, MD (1 shared paper) and Angeline Michelle Nguyen, MD (1 shared paper).
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