John D. Clark, OD
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 34
- Industry payments
- $233
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 97 Genesee St, Auburn, NY 13021
- Practice phone
- Call (315) 253-7032
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Silbert Optical, Inc.
Auburn, New York
Find John Clark'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.
John D. Clark is an optometrist in Auburn, New York
John Clark practices at Silbert Optical, Inc. in Auburn, New York.
John Clark's NPI, 1437213907, was assigned on December 20, 2006. John Clark graduated from Pennsylvania College of Optometry in 1993. John Clark holds New York license TUV005491.
- NPI
- 1437213907NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507768397
- NPI enumeration date
- December 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (315) 253-7032
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John D. Clark practices at Silbert Optical, Inc. in Auburn, New York
John Clark's primary practice is Silbert Optical, Inc., at 97 Genesee St, Auburn, NY 13021 in Cayuga County. The practice phone is (315) 253-7032.
- Silbert Optical, Inc.97 Genesee St, Auburn, NY 13021 · Cayuga CountyPhone(315) 253-7032
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John D. Clark is affiliated with 2 sites of care and 2 medical groups
John Clark's primary practice is Silbert Optical, Inc. in Auburn, New York. Dmand AI also links John Clark to 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John D. Clark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Clark practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Silbert Optical, Inc. | 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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John D. Clark is one of 2,393 optometrists in New York
Optometrist is John Clark's primary specialty in the NPI Registry, under taxonomy code 152W00000X. John Clark is licensed in New York.
Specialties and state licenses
- Optometrist, New YorkPrimary
Optometrists near John Clark
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
John D. Clark treated 52 Medicare patients in 2024, average age 81
CMS counts 52 Medicare patients who saw John Clark in 2024. The largest group is 75 to 84, with 21 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 1.68, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts John Clark's median patient age at 67, with 54% women.
John Clark's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Clark's Medicare patients by sex, 2024
- Women3262%
- Men2038%
Chronic conditions among John Clark's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders42%
- Depression40%
- Arthritis37%
- Ischemic heart disease35%
- Chronic kidney disease33%
- Diabetes33%
Share of Medicare patients with each condition. A patient can have several.
John Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John D. Clark wrote 34 Medicare Part D claims in 2024
In 2024, John Clark wrote 34 Medicare Part D claims for 12 patients. 53% of them were for generic drugs.
John Clark's Part D claims by kind of drug, 2024
- Generic18 claims53%
- Brand-name16 claims47%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How John D. Clark takes part in Medicare
John Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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John D. Clark received $233 in industry payments in 2025
CMS Open Payments shows 2 general payments to John Clark from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. LKC Technologies, Inc. paid the most, $122.
Companies that paid John Clark the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John D. Clark graduated from Pennsylvania College of Optometry
John Clark graduated from Pennsylvania College of Optometry in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John D. Clark'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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 John D. Clark
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John D. Clark's NPI number?
John D. Clark's NPI number is 1437213907. It was assigned on December 20, 2006, and it is active in the NPI Registry.
What does John D. Clark specialize in?
John D. Clark is an optometrist in Auburn, New York. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does John D. Clark practice?
John Clark practices at 97 Genesee St, Auburn, NY 13021. John Clark's primary practice is Silbert Optical, Inc. in Auburn, New York. Dmand AI also links John Clark to 2 medical groups and 1 group practice or clinic.
What is John D. Clark's office phone number?
The practice phone on file for John Clark is (315) 253-7032.
What is John D. Clark's medical license number?
John Clark holds New York license TUV005491.
Does John D. Clark accept Medicare?
Yes. CMS lists John Clark as accepting Medicare assignment.
How many Medicare patients does John D. Clark see?
CMS counts 52 Medicare patients who saw John Clark in 2024, with an average age of 81.
Where did John D. Clark go to medical school?
John Clark graduated from Pennsylvania College of Optometry in 1993.
Has John D. Clark received payments from drug or device companies?
CMS Open Payments shows $233 in general payments to John Clark from 2 companies from 2025 to 2025. The largest total came from LKC Technologies, Inc.
How long has John D. Clark been practicing?
John Clark graduated from medical school in 1993, 33 years ago.
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