Nicholas A. Castellano, OD
- Medicare patients, 2024
- 462
- Part D claims, 2024
- 614
- Industry payments
- $258
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2511 S Brentwood Blvd, Saint Louis, MO 63144
- Practice phone
- Call (314) 863-0000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Koetting Associates Inc
Saint Louis, Missouri
Find Nicholas Castellano'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.
Nicholas A. Castellano is an optometrist in Saint Louis, Missouri
Nicholas Castellano practices at The Koetting Associates Inc in Saint Louis, Missouri.
Nicholas Castellano's NPI, 1669821062, was assigned on June 7, 2016. Nicholas Castellano graduated from University of Missouri St Louis - School of Optometry in 2016. Nicholas Castellano holds Missouri license 2016017805.
- NPI
- 1669821062NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567753841
- NPI enumeration date
- June 7, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 863-0000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Nicholas A. Castellano practices at The Koetting Associates Inc in Saint Louis, Missouri
Nicholas Castellano's primary practice is The Koetting Associates Inc, at 2511 S Brentwood Blvd, Saint Louis, MO 63144 in Saint Louis County. The practice phone is (314) 863-0000.
- The Koetting Associates Inc2511 S Brentwood Blvd, Saint Louis, MO 63144 · Saint Louis CountyPhone(314) 863-0000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Nicholas A. Castellano is affiliated with 2 sites of care and 1 medical group
Nicholas Castellano's primary practice is The Koetting Associates Inc in Saint Louis, Missouri. Dmand AI also links Nicholas Castellano to 1 group practice or clinic and 1 medical group, 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 Nicholas A. Castellano's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nicholas Castellano practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Koetting Associates Inc | 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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Nicholas A. Castellano is one of 866 optometrists in Missouri
Optometrist is Nicholas Castellano's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Nicholas Castellano is licensed in Missouri.
Specialties and state licenses
- Optometrist, MissouriPrimary
Optometrists near Nicholas Castellano
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
Nicholas A. Castellano treated 462 Medicare patients in 2024, average age 75
CMS counts 462 Medicare patients who saw Nicholas Castellano in 2024. The largest group is 65 to 74, with 244 patients. 73% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nicholas Castellano's median patient age at 71, with 59% women.
Nicholas Castellano's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Nicholas Castellano's Medicare patients by sex, 2024
- Women28461%
- Men17839%
Chronic conditions among Nicholas Castellano's Medicare patients, 2024
- High cholesterol73%
- High blood pressure65%
- Arthritis48%
- Diabetes20%
- Ischemic heart disease18%
- Atrial fibrillation16%
- Cancer16%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Nicholas Castellano'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
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Nicholas A. Castellano wrote 614 Medicare Part D claims in 2024
In 2024, Nicholas Castellano wrote 614 Medicare Part D claims for 234 patients. 61% of them were for generic drugs.
Nicholas Castellano's Part D claims by kind of drug, 2024
- Generic377 claims61%
- Brand-name237 claims39%
Drug classes CMS tracks in Nicholas Castellano's Part D claims, 2024
- Antibiotics4%22 of 614 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
Nicholas A. Castellano ranks in the 62nd percentile for cataract surgery in Medicare
Nicholas Castellano accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 47 procedures of cataract surgery by Nicholas Castellano, more than 62% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Nicholas Castellano ranks in Medicare procedure volume
- Cataract surgery
- 62nd percentile47 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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Nicholas A. Castellano received $258 in industry payments in 2025
CMS Open Payments shows 11 general payments to Nicholas Castellano 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, $93.
Companies that paid Nicholas Castellano the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Nicholas A. Castellano graduated from University of Missouri St Louis - School of Optometry
Nicholas Castellano graduated from University of Missouri St Louis - School of Optometry in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Nicholas A. Castellano'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)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 Nicholas A. Castellano
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nicholas A. Castellano's NPI number?
Nicholas A. Castellano's NPI number is 1669821062. It was assigned on June 7, 2016, and it is active in the NPI Registry.
What does Nicholas A. Castellano specialize in?
Nicholas A. Castellano is an optometrist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Nicholas A. Castellano practice?
Nicholas Castellano practices at 2511 S Brentwood Blvd, Saint Louis, MO 63144. Nicholas Castellano's primary practice is The Koetting Associates Inc in Saint Louis, Missouri. Dmand AI also links Nicholas Castellano to 1 group practice or clinic and 1 medical group.
What is Nicholas A. Castellano's office phone number?
The practice phone on file for Nicholas Castellano is (314) 863-0000.
What is Nicholas A. Castellano's medical license number?
Nicholas Castellano holds Missouri license 2016017805.
Does Nicholas A. Castellano accept Medicare?
Yes. CMS lists Nicholas Castellano as accepting Medicare assignment.
How many Medicare patients does Nicholas A. Castellano see?
CMS counts 462 Medicare patients who saw Nicholas Castellano in 2024, with an average age of 75.
Where did Nicholas A. Castellano go to medical school?
Nicholas Castellano graduated from University of Missouri St Louis - School of Optometry in 2016.
Has Nicholas A. Castellano received payments from drug or device companies?
CMS Open Payments shows $258 in general payments to Nicholas Castellano from 8 companies from 2025 to 2025. The largest total came from Tarsus Pharmaceuticals, Inc.
How long has Nicholas A. Castellano been practicing?
Nicholas Castellano graduated from medical school in 2016, 10 years ago.
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