Dr. Daniel R. Slack, MD
- Medicare services, 2024
- 81
- Medicare patients, 2024
- 72
- Part D claims, 2024
- 136
- Hospital affiliations
- 3
- Industry payments
- $4,150
- Practice address
- 565 Abbott Road, Buffalo, NY 14220
- Practice phone
- Call (716) 826-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Slack'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. Daniel R. Slack is a general surgeon in Buffalo, New York
Dr. Slack practices at Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System.
Dr. Slack's NPI, 1932581618, was assigned on June 18, 2015. Dr. Slack holds North Carolina license 2021-00579.
- NPI
- 1932581618NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143525261
- NPI enumeration date
- June 18, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 826-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel R. Slack practices at Mercy Hospital of Buffalo in Buffalo, New York
Dr. Slack's primary practice is Mercy Hospital of Buffalo, at 565 Abbott Road, Buffalo, NY 14220 in Erie County. The practice phone is (716) 826-7000.
- Mercy Hospital of Buffalo565 Abbott Road, Buffalo, NY 14220 · Erie CountyPhone(716) 826-7000
Source: Dmand AI Affiliation Data
Dr. Daniel R. Slack is affiliated with 4 sites of care and 2 medical groups
Dr. Slack's primary practice is Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System. Dr. Slack is also affiliated with Sisters of Charity Hospital. The medical group on file is Trinity Medical. Dmand AI also links Dr. Slack to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel R. Slack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Slack practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital of Buffalo | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel R. Slack is one of 1,604 general surgeons in New York
Surgery is Dr. Slack's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Slack is licensed in North Carolina.
Specialties and state licenses
- Surgery, North CarolinaPrimary
General surgeons near Dr. Slack
Counts of general surgeons 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. Daniel R. Slack billed Medicare for 81 services in 2024
CMS data shows 81 Medicare services from Dr. Slack across 4 procedure codes in 2024, for 72 Medicare patients. Medicare paid $6,336 for them.
Dr. Slack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 752024: 818%
Where Dr. Slack's Medicare services took place, 2024
- In an office3138%
- In a facility5062%
Dr. Slack compared with the New York median for general surgeons, 2024
- Dr. Slack
- New York median
- Medicare services
- 81vs 15447% below
- Medicare patients
- 72vs 10934% below
- Part D claims
- 108vs 244.5 times
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Slack's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Slack and other general surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel R. Slack treated 72 Medicare patients in 2024, average age 67
CMS counts 72 Medicare patients who saw Dr. Slack in 2024. The largest group is 65 to 74, with 26 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 44% are also on Medicaid. Their average risk score is 1.89, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Slack's median patient age at 52, with 71% women.
Dr. Slack's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Slack's Medicare patients by sex, 2024
- Women3143%
- Men4157%
Chronic conditions among Dr. Slack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis51%
- Anxiety43%
- Mood disorders39%
- Chronic kidney disease36%
- Depression36%
- Diabetes36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Slack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women71%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel R. Slack wrote 136 Medicare Part D claims in 2024
In 2024, Dr. Slack wrote 136 Medicare Part D claims for 49 patients. 98% of them were for generic drugs. CMS names the drug for 108 of them, across 5 drugs with 11 or more claims each, at $544 in total drug cost. In 2023, CMS named 85 claims across 5 drugs.
Dr. Slack's Part D claims by kind of drug, 2024
- Generic133 claims98%
- Brand-name and other3 claims2%
Dr. Slack'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.
Drug classes CMS tracks in Dr. Slack's Part D claims, 2024
- Opioids26%36 of 136 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 852024: 10827%
Drugs named by CMS: 5 in 2024, 5 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
Dr. Daniel R. Slack ranks in the 81st percentile for hernia repair (minimally invasive) in Medicare
Dr. Slack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 15 procedures of hernia repair (minimally invasive) by Dr. Slack, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Slack ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 81st percentile15 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 45th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Daniel R. Slack received $4,150 in industry payments from 2017 to 2023
CMS Open Payments shows 21 general payments to Dr. Slack from 8 drug and device companies from 2017 to 2023. Education make up the largest share, 50% of the total. Intuitive Surgical, Inc. paid the most, $3,636.
General payments to Dr. Slack by program year, 2017 to 2023
General payments to Dr. Slack by kind, 2017 to 2023
- Education$2,05550%
- Travel and lodging$1,54537%
- Food and beverage$53413%
- Gifts$160%
Companies that paid Dr. Slack the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Daniel R. Slack'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 DataDmand AI Org Hierarchy Data |
| 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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) |
| 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. Daniel R. Slack
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. Daniel R. Slack's NPI number?
Dr. Daniel R. Slack's NPI number is 1932581618. It was assigned on June 18, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel R. Slack?
Dr. Daniel R. Slack is a general surgeon in Buffalo, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Daniel R. Slack practice?
Dr. Slack practices at 565 Abbott Road, Buffalo, NY 14220. Dr. Slack's primary practice is Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System. Dmand AI also links Dr. Slack to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Daniel R. Slack's office phone number?
The practice phone on file for Dr. Slack is (716) 826-7000.
What is Dr. Daniel R. Slack's medical license number?
Dr. Slack holds North Carolina license 2021-00579.
Which hospitals is Dr. Daniel R. Slack affiliated with?
Dr. Slack practices at Mercy Hospital of Buffalo in Buffalo, New York. Dr. Slack is also affiliated with Sisters of Charity Hospital. Dmand AI links Dr. Slack to 1 more hospital.
What medical group is Dr. Daniel R. Slack part of?
Dr. Slack is linked to Trinity Medical. Dmand AI links Dr. Slack to 1 more medical group.
Does Dr. Daniel R. Slack accept Medicare?
Yes. CMS data shows Dr. Slack billed Medicare for 81 services in 2024, and Dr. Slack accepts Medicare assignment.
How many Medicare patients does Dr. Daniel R. Slack see?
CMS counts 72 Medicare patients who saw Dr. Slack in 2024, with an average age of 67.
What services does Dr. Daniel R. Slack bill to Medicare?
In 2024, Dr. Slack's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and office visit, new patient (99204).
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What drugs does Dr. Daniel R. Slack prescribe most?
In 2024 Medicare Part D data, Dr. Slack's most prescribed drugs by claims were Ondansetron ODT, Cyclobenzaprine HCl and Hydrocodone-Acetaminophen.
Has Dr. Daniel R. Slack received payments from drug or device companies?
CMS Open Payments shows $4,150 in general payments to Dr. Slack from 8 companies from 2017 to 2023. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Daniel R. Slack been practicing?
Dr. Slack graduated from medical school in 2015, 11 years ago.
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