Dr. Diemngoc T. Dang, MD
- Medicare services, 2023
- 1,093
- Part D claims, 2024
- 154
- Industry payments
- $2,386
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 4710 Spotsylvania Pkwy Suite 104 Suite 104, Fredericksburg, VA 22407-9433
- Practice phone
- Call (540) 741-2733
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mary Washington Eye Care Center
Eye care practice · Fredericksburg, Virginia
Find Dr. Dang'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.
Dr. Diemngoc T. Dang is an ophthalmologist in Fredericksburg, Virginia
Dr. Dang practices at Mary Washington Eye Care Center in Fredericksburg, Virginia.
Dr. Dang's NPI, 1215927629, was assigned on October 26, 2005. Dr. Dang graduated from University of Miami, Miller School of Medicine in 1998. Dr. Dang holds Virginia license 0101232891.
- NPI
- 1215927629NPI Registry (opens in a new tab)
- NPI enumeration date
- October 26, 2005
- NPI status
- Active
- Practice phone
- (540) 741-2733
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- 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. Diemngoc T. Dang practices at 2 locations in Fredericksburg, Virginia
Dr. Dang's primary practice is Mary Washington Eye Care Center, at 4710 Spotsylvania Pkwy Suite 104 Suite 104, Fredericksburg, VA 22407-9433. The practice phone is (540) 741-2733. The NPI Registry lists Dr. Dang's practice address as 2300 Fall Hill Ave, Fredericksburg, VA 22401.
- Mary Washington Eye Care CenterPrimary4710 Spotsylvania Pkwy Suite 104 Suite 104, Fredericksburg, VA 22407-9433Phone(540) 741-2733
- NPI Registry address2300 Fall Hill Ave, Fredericksburg, VA 22401 · Fredericksburg CityPhone(540) 741-2733
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Diemngoc T. Dang is affiliated with 1 site of care and 1 medical group
Dr. Dang's primary practice is Mary Washington Eye Care Center in Fredericksburg, Virginia. Dmand AI also links Dr. Dang to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Diemngoc T. Dang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mary Washington Eye Care Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diemngoc T. Dang is one of 504 ophthalmologists in Virginia
Ophthalmology is Dr. Dang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Dang is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Dang's licenses on file in 4 states: Virginia, California, Florida and Hawaii.
Specialties and state licenses
- Ophthalmology, VirginiaPrimary
- California license
- Florida license
- Hawaii license
Clinical focus
Dmand AI lists cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation, eyelid inflammation and glaucoma among the conditions Dr. Dang treats.
Ophthalmologists near Dr. Dang
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. Diemngoc T. Dang billed Medicare for 1,093 services in 2023
CMS data shows 1,093 Medicare services from Dr. Dang across 11 procedure codes in 2023. Medicare paid $83,506 for them.
Dr. Dang's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Tests and treatments
- 2022: 5182023: 5588%
- Office and hospital visits
- 2022: 4372023: 4401%
- Surgery
- 2022: 672023: 5912%
- Imaging
- 2022: 712023: 3649%
Where Dr. Dang's Medicare services took place, 2023
- In an office1,05296%
- In a facility414%
Dr. Dang compared with the Virginia median for ophthalmologists, 2023
- Dr. Dang
- Virginia median
- Medicare services
- 1,093vs 1,92443% below
- Part D claims
- 101vs 52281% below
Medians across 517 ophthalmologists in Virginia with Dmand AI profiles that report each measure.
Dr. Dang's most billed Medicare procedure codes, 2023
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. Dang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dang and other ophthalmologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diemngoc T. Dang's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Dang's median patient age at 72, with 51% women.
Dr. Dang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Diemngoc T. Dang wrote 154 Medicare Part D claims in 2024
In 2024, Dr. Dang wrote 154 Medicare Part D claims for 58 patients. 68% of them were for generic drugs. CMS names the drug for 101 of them, across 4 drugs with 11 or more claims each, at $9,439 in total drug cost. In 2023, CMS named 658 claims across 15 drugs.
Dr. Dang's Part D claims by kind of drug, 2024
- Generic104 claims68%
- Brand-name50 claims32%
Dr. Dang's 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6582024: 10185%
Drugs named by CMS: 4 in 2024, 15 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
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Dr. Diemngoc T. Dang received $2,386 in industry payments from 2016 to 2025
CMS Open Payments shows 46 general payments to Dr. Dang from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $385.
General payments to Dr. Dang by program year, 2016 to 2025
Companies that paid Dr. Dang 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. Diemngoc T. Dang has 1 award and honors on record
Dmand AI lists 1 award for Dr. Dang.
Awards and honors for Dr. Dang
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Diemngoc T. Dang graduated from University of Miami, Miller School of Medicine
Dr. Dang graduated from University of Miami, Miller School of Medicine in 1998. Dr. Dang is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Diemngoc T. Dang accepts plans from 6 insurance carriers
Dr. Dang is in network with 6 carriers, including Excellus BlueCross BlueShield, CareFirst BlueCross BlueShield and Molina. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- CareFirst BlueCross BlueShield
- Molina
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
Plan types Dr. Dang accepts, by number of carriers
- Medicare6
- PPO5
- HMO3
- EPO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Diemngoc T. Dang'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Diemngoc T. Dang
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. Diemngoc T. Dang's NPI number?
Dr. Diemngoc T. Dang's NPI number is 1215927629. It was assigned on October 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Diemngoc T. Dang?
Dr. Diemngoc T. Dang is an ophthalmologist in Fredericksburg, Virginia. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Diemngoc T. Dang practice?
Dr. Dang practices at 4710 Spotsylvania Pkwy Suite 104 Suite 104, Fredericksburg, VA 22407-9433. Dr. Dang also practices at 2300 Fall Hill Ave, Fredericksburg, VA 22401. Dr. Dang's primary practice is Mary Washington Eye Care Center in Fredericksburg, Virginia. Dmand AI also links Dr. Dang to 1 medical group.
What is Dr. Diemngoc T. Dang's office phone number?
The practice phone on file for Dr. Dang is (540) 741-2733.
What is Dr. Diemngoc T. Dang's medical license number?
Dr. Dang holds Virginia license 0101232891, one of the licenses on file in 4 states.
Which states has Dr. Diemngoc T. Dang been licensed in?
Dmand AI has state licenses on file for Dr. Dang in Virginia (2002 to 2026), California (since 2003), Florida (2004 to 2006) and Hawaii (2003 to 2006).
Does Dr. Diemngoc T. Dang accept Medicare?
Yes. CMS data shows Dr. Dang billed Medicare for 1,093 services in 2023.
Is Dr. Diemngoc T. Dang board certified?
Yes. Dr. Dang is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Diemngoc T. Dang bill to Medicare?
In 2023, Dr. Dang's most billed Medicare services were office visit, established patient (99213), eye exam or test (92014) and office visit, established patient (99214).
Where did Dr. Diemngoc T. Dang go to medical school?
Dr. Dang graduated from University of Miami, Miller School of Medicine in 1998.
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What drugs does Dr. Diemngoc T. Dang prescribe most?
In 2024 Medicare Part D data, Dr. Dang's most prescribed drugs by claims were Latanoprost, Brimonidine Tartrate and Lumigan.
Has Dr. Diemngoc T. Dang received payments from drug or device companies?
CMS Open Payments shows $2,386 in general payments to Dr. Dang from 19 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Diemngoc T. Dang been practicing?
Dr. Dang graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Diemngoc T. Dang accept?
Dr. Dang is in network with 6 carriers, including Excellus BlueCross BlueShield, CareFirst BlueCross BlueShield and Molina. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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