Gary W. Fredericksen, OD
- Medicare patients, 2024
- 1,308
- Part D claims, 2024
- 212
- MIPS score, 2024
- 95
- Industry payments
- $294
- Affiliated sites
- 3
- Practice address
- 120 Kings Way, Williamsburg, VA 23185
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Doctors Surgery Center - HOPD
Acute Care Hospital outpatient department · Williamsburg, Virginia
Find Gary Fredericksen'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.
Gary W. Fredericksen is an optometrist in Williamsburg, Virginia
Gary Fredericksen practices at Doctors Surgery Center - HOPD in Williamsburg, Virginia.
Gary Fredericksen's NPI, 1629035225, was assigned on April 27, 2006. Gary Fredericksen graduated from New England College of Optometry in 1981. Gary Fredericksen holds Virginia license 0618000905.
- NPI
- 1629035225NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840202487
- NPI enumeration date
- April 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gary W. Fredericksen practices at Doctors Surgery Center - HOPD in Williamsburg, Virginia
Gary Fredericksen's primary practice is Doctors Surgery Center - HOPD, at 120 Kings Way, Williamsburg, VA 23185.
- Doctors Surgery Center - HOPD120 Kings Way, Williamsburg, VA 23185
Source: Dmand AI Affiliation Data
Gary W. Fredericksen is affiliated with 3 sites of care and 1 medical group
Gary Fredericksen's primary practice is Doctors Surgery Center - HOPD in Williamsburg, Virginia. The medical group on file is Riverside Gastroenterology Specialists. Dmand AI also links Gary Fredericksen to 1 more group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gary W. Fredericksen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gary Fredericksen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Doctors Surgery Center - HOPD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Gary W. Fredericksen is one of 2,487 optometrists in Virginia
Optometrist is Gary Fredericksen's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Gary Fredericksen is licensed in Virginia.
Specialties and state licenses
- Optometrist, VirginiaPrimary
Optometrists near Gary Fredericksen
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
Gary W. Fredericksen treated 1,308 Medicare patients in 2024, average age 77
CMS counts 1,308 Medicare patients who saw Gary Fredericksen in 2024. The largest group is 75 to 84, with 606 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 2% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gary Fredericksen's median patient age at 72, with 57% women.
Gary Fredericksen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gary Fredericksen's Medicare patients by sex, 2024
- Women72155%
- Men58745%
Chronic conditions among Gary Fredericksen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis47%
- Diabetes23%
- Ischemic heart disease20%
- Chronic kidney disease19%
- Osteoporosis18%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
Gary Fredericksen'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
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gary W. Fredericksen wrote 212 Medicare Part D claims in 2024
In 2024, Gary Fredericksen wrote 212 Medicare Part D claims for 93 patients. 71% of them were for generic drugs.
Gary Fredericksen's Part D claims by kind of drug, 2024
- Generic150 claims71%
- Brand-name62 claims29%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Gary W. Fredericksen scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Gary Fredericksen for performance year 2024, reported through an alternative payment model (APM). Gary Fredericksen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Gary Fredericksen's MIPS scores, performance year 2024
- 95of 100Final score
- 92.9of 100Quality
- 95of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Gary W. Fredericksen received $294 in industry payments in 2025
CMS Open Payments shows 14 general payments to Gary Fredericksen from 8 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Tarsus Pharmaceuticals, Inc. paid the most, $90.
Companies that paid Gary Fredericksen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Gary W. Fredericksen graduated from New England College of Optometry
Gary Fredericksen graduated from New England College of Optometry in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Gary W. Fredericksen'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)Clinician Public Reporting: Overall MIPS Performance (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 Gary W. Fredericksen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gary W. Fredericksen's NPI number?
Gary W. Fredericksen's NPI number is 1629035225. It was assigned on April 27, 2006, and it is active in the NPI Registry.
What does Gary W. Fredericksen specialize in?
Gary W. Fredericksen is an optometrist in Williamsburg, Virginia. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Gary W. Fredericksen practice?
Gary Fredericksen practices at 120 Kings Way, Williamsburg, VA 23185. Gary Fredericksen's primary practice is Doctors Surgery Center - HOPD in Williamsburg, Virginia. Dmand AI also links Gary Fredericksen to 1 group practice or clinic and 1 ambulatory surgery center.
What is Gary W. Fredericksen's medical license number?
Gary Fredericksen holds Virginia license 0618000905.
What medical group is Gary W. Fredericksen part of?
Gary Fredericksen is linked to Riverside Gastroenterology Specialists.
Does Gary W. Fredericksen accept Medicare?
Yes. CMS lists Gary Fredericksen as accepting Medicare assignment.
What is Gary W. Fredericksen's MIPS score?
Gary Fredericksen's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Gary W. Fredericksen see?
CMS counts 1,308 Medicare patients who saw Gary Fredericksen in 2024, with an average age of 77.
Where did Gary W. Fredericksen go to medical school?
Gary Fredericksen graduated from New England College of Optometry in 1981.
Has Gary W. Fredericksen received payments from drug or device companies?
CMS Open Payments shows $294 in general payments to Gary Fredericksen from 8 companies from 2025 to 2025. The largest total came from Tarsus Pharmaceuticals, Inc.
How long has Gary W. Fredericksen been practicing?
Gary Fredericksen graduated from medical school in 1981, 45 years ago.
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