Samuel Stack, OD
- Medicare patients, 2024
- 382
- Part D claims, 2024
- 167
- Industry payments
- $36
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 104 Meadow St, Littleton, NH 03561-4026
- Practice phone
- Call (603) 444-2592
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Littleton Eye Care Center
Eye care practice · Littleton, New Hampshire
Find Samuel Stack'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.
Samuel Stack is an optometrist in Littleton, New Hampshire
Samuel Stack practices at Littleton Eye Care Center in Littleton, New Hampshire.
Samuel Stack's NPI, 1114542149, was assigned on June 16, 2020. Samuel Stack graduated from State University of New York - State College Optometry in 2020. Samuel Stack holds New Hampshire license 1042.
- NPI
- 1114542149NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658775937
- NPI enumeration date
- June 16, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (603) 444-2592
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Samuel Stack practices at Littleton Eye Care Center in Littleton, New Hampshire
Samuel Stack's primary practice is Littleton Eye Care Center, at 104 Meadow St, Littleton, NH 03561-4026. The practice phone is (603) 444-2592.
- Littleton Eye Care Center104 Meadow St, Littleton, NH 03561-4026Phone(603) 444-2592
Source: Dmand AI Affiliation Data
Samuel Stack is affiliated with 1 site of care and 1 medical group
Samuel Stack's primary practice is Littleton Eye Care Center in Littleton, New Hampshire. Dmand AI also links Samuel Stack to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Samuel Stack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Samuel Stack practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Littleton 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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Samuel Stack is one of 211 optometrists in New Hampshire
Optometrist is Samuel Stack's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dmand AI has Samuel Stack's licenses on file in 2 states: New Hampshire and Pennsylvania.
Specialties and state licenses
- Optometrist, New HampshirePrimary
- Pennsylvania license
Optometrists near Samuel Stack
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
Samuel Stack treated 382 Medicare patients in 2024, average age 71
CMS counts 382 Medicare patients who saw Samuel Stack in 2024. The largest group is 65 to 74, with 224 patients. 58% of them have high blood pressure, and 58% have high cholesterol. 15% are also on Medicaid. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Samuel Stack's median patient age at 69, with 53% women.
Samuel Stack's Medicare patients by age, 2024
Samuel Stack's Medicare patients by sex, 2024
- Women21255%
- Men17045%
Chronic conditions among Samuel Stack's Medicare patients, 2024
- High blood pressure58%
- High cholesterol58%
- Arthritis34%
- Diabetes26%
- Anxiety21%
- Mood disorders19%
- Depression18%
- COPD12%
Share of Medicare patients with each condition. A patient can have several.
Samuel Stack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Samuel Stack wrote 167 Medicare Part D claims in 2024
In 2024, Samuel Stack wrote 167 Medicare Part D claims for 40 patients. 57% of them were for generic drugs.
Samuel Stack's Part D claims by kind of drug, 2024
- Generic95 claims57%
- Brand-name72 claims43%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Samuel Stack takes part in Medicare
Samuel Stack 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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Samuel Stack received $36 in industry payments in 2025
CMS Open Payments shows 2 general payments to Samuel Stack from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $18.
Companies that paid Samuel Stack the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Samuel Stack graduated from State University of New York - State College Optometry
Samuel Stack graduated from State University of New York - State College Optometry in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Samuel Stack'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) |
| 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 Samuel Stack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Samuel Stack's NPI number?
Samuel Stack's NPI number is 1114542149. It was assigned on June 16, 2020, and it is active in the NPI Registry.
What does Samuel Stack specialize in?
Samuel Stack is an optometrist in Littleton, New Hampshire. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Samuel Stack practice?
Samuel Stack practices at 104 Meadow St, Littleton, NH 03561-4026. Samuel Stack's primary practice is Littleton Eye Care Center in Littleton, New Hampshire. Dmand AI also links Samuel Stack to 1 medical group.
What is Samuel Stack's office phone number?
The practice phone on file for Samuel Stack is (603) 444-2592.
What is Samuel Stack's medical license number?
Samuel Stack holds New Hampshire license 1042, one of the licenses on file in 2 states.
Which states has Samuel Stack been licensed in?
Dmand AI has state licenses on file for Samuel Stack in New Hampshire and Pennsylvania.
Does Samuel Stack accept Medicare?
Yes. CMS lists Samuel Stack as accepting Medicare assignment.
How many Medicare patients does Samuel Stack see?
CMS counts 382 Medicare patients who saw Samuel Stack in 2024, with an average age of 71.
Where did Samuel Stack go to medical school?
Samuel Stack graduated from State University of New York - State College Optometry in 2020.
Has Samuel Stack received payments from drug or device companies?
CMS Open Payments shows $36 in general payments to Samuel Stack from 2 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Samuel Stack been practicing?
Samuel Stack graduated from medical school in 2020, 6 years ago.
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