Administration, CutaneousAdministration, OralEstradiol
Dr. Daniel Jeffrey Slack, MD
NPI1023512068PAC ID7517203664
- Medicare services, 2024
- 87
- Medicare patients, 2024
- 54
- Part D claims, 2024
- 421
- Publications
- 10
- Hospital affiliations
- 3
- Practice address
- 4300 Alton Rd, Miami Beach, FL 33140
- Practice phone
- Call (305) 674-2121
- 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 Jeffrey Slack is a hospitalist in New York, New York
Dr. Slack practices at Mount Sinai Medical Center in Miami Beach, Florida, part of Mount Sinai Medical Center of Florida.
Dr. Slack's NPI, 1023512068, was assigned on March 23, 2018. Dr. Slack graduated from University of Maryland School of Medicine in 2018. Dr. Slack holds New York license 309235.
NPI and contact details
- NPI
- 1023512068NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517203664
- NPI enumeration date
- March 23, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (305) 674-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Jeffrey Slack practices in Miami Beach and New York
Dr. Slack's primary practice is Mount Sinai Medical Center, at 4300 Alton Rd, Miami Beach, FL 33140 in Miami-Dade County. The practice phone is (305) 674-2121. Dr. Slack also practices at Mount Sinai Medical Center, 5 E 98th St, New York, NY 10029.
- Mount Sinai Medical CenterPrimary4300 Alton Rd, Miami Beach, FL 33140 · Miami-Dade CountyPhone(305) 674-2121
- Mount Sinai Medical Center5 E 98th St, New York, NY 10029 · New York CountyPhone(310) 227-5687
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Daniel Jeffrey Slack is affiliated with 3 sites of care and 1 medical group
Dr. Slack's primary practice is Mount Sinai Medical Center in Miami Beach, Florida, part of Mount Sinai Medical Center of Florida. Dr. Slack is also affiliated with The Mount Sinai Hospital. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Slack to 1 more hospital, 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 Jeffrey Slack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Slack practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Sinai Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Jeffrey Slack is one of 1,796 hospitalists in New York
Hospitalist is Dr. Slack's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Slack is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine. Dr. Slack is licensed in New York.
Specialties and state licenses
- Hospitalist, New YorkPrimary
Hospitalists near Dr. Slack
Counts of hospitalists 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 Jeffrey Slack billed Medicare for 87 services in 2024
CMS data shows 87 Medicare services from Dr. Slack across 5 procedure codes in 2024, for 54 Medicare patients. Medicare paid $6,569 for them.
Medicare services, 202487
Medicare patients54
Paid by Medicare$6,569
Procedure codes5
Dr. Slack's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 222024: 44100%
- Other services
- 2022: 02024: 24
- Surgery
- 2022: 02024: 19
Where Dr. Slack's Medicare services took place, 2024
- In an office7080%
- In a facility1720%
Dr. Slack compared with the New York median for hospitalists, 2024
- Dr. Slack
- New York median
- Medicare services
- 87vs 38878% below
- Medicare patients
- 54vs 16367% below
- Part D claims
- 256vs 554.7 times
Medians across 1,696 hospitalists 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Jeffrey Slack treated 54 Medicare patients in 2024, average age 73
CMS counts 54 Medicare patients who saw Dr. Slack in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 43% are also on Medicaid. Their average risk score is 2.52, 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 56, with 59% women.
Medicare patients, 202454
Average age73
Average risk score2.52
Also on Medicaid43%
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
- Women3259%
- Men2241%
Chronic conditions among Dr. Slack's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Diabetes65%
- Arthritis43%
- Ischemic heart disease39%
- Mood disorders35%
- Depression31%
- Atrial fibrillation30%
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 56
Patient panel by sex, all payers
- Women59%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Jeffrey Slack wrote 421 Medicare Part D claims in 2024
In 2024, Dr. Slack wrote 421 Medicare Part D claims for 110 patients. 43% of them were for generic drugs. CMS names the drug for 256 of them, across 12 drugs with 11 or more claims each, at $115,884 in total drug cost. In 2023, CMS named 224 claims across 10 drugs.
Part D claims, 2024421
Drugs named by CMS12
Total drug cost$115,884
Part D patients110
Dr. Slack's Part D claims by kind of drug, 2024
- Generic180 claims43%
- Brand-name207 claims49%
- Other34 claims8%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2242024: 25614%
Drugs named by CMS: 12 in 2024, 10 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 Jeffrey Slack offers telehealth to Medicare patients
Dr. Slack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Slack as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Daniel Jeffrey Slack has 10 publications on record
Dmand AI links 10 papers to Dr. Slack, published from 2020 to 2024. 2020 was the busiest year, with 2. The most frequent topics are Transgender Persons, Hernia, Hiatal and Laparoscopy. Dr. Slack has published most often in Endocr Pract. Dr. Slack's most frequent co-authors are Joshua David Safer, MD, Abdelrahman Nimeri, MD and Robert Anthony Catania, MD.
Papers10
Years published2020 to 2024
Dr. Slack's papers by year, 2020 to 2024
Topics Dr. Slack writes about most
- Transgender Persons
- Hernia, Hiatal
- Laparoscopy
- Obesity, Morbid
- Testosterone
- Transsexualism
- Venous Thromboembolism
Dr. Slack's most frequent co-authors
- Joshua David Safer, MD5 shared papers
- Abdelrahman Nimeri, MD3 shared papers
- Robert Anthony Catania, MD1 shared paper
Recent publications by Dr. Slack
ComorbidityTransgender PersonsVenous Thromboembolism
COVID-19Esophageal AchalasiaGastrectomy
Constriction, PathologicDilatationHernia, Hiatal
LeadershipSocieties, MedicalSurgeons
See who Dr. Slack researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Slack works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel Jeffrey Slack received $66 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Slack from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $43.
General payments to Dr. Slack by program year, 2022 to 2023
Companies that paid Dr. Slack the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Jeffrey Slack graduated from University of Maryland School of Medicine
Dr. Slack graduated from University of Maryland School of Medicine in 2018.
- Medical school
- Board certified in endocrinology, diabetes and metabolism
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Jeffrey 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Daniel Jeffrey 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 Jeffrey Slack's NPI number?
Dr. Daniel Jeffrey Slack's NPI number is 1023512068. It was assigned on March 23, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Jeffrey Slack?
Dr. Daniel Jeffrey Slack is a hospitalist in New York, New York. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Daniel Jeffrey Slack practice?
Dr. Slack practices at 4300 Alton Rd, Miami Beach, FL 33140. Dr. Slack also practices at 5 E 98th St, New York, NY 10029. Dr. Slack's primary practice is Mount Sinai Medical Center in Miami Beach, Florida, part of Mount Sinai Medical Center of Florida. Dmand AI also links Dr. Slack to 1 hospital.
What is Dr. Daniel Jeffrey Slack's office phone number?
The practice phone on file for Dr. Slack is (305) 674-2121.
What is Dr. Daniel Jeffrey Slack's medical license number?
Dr. Slack holds New York license 309235.
Which hospitals is Dr. Daniel Jeffrey Slack affiliated with?
Dr. Slack practices at Mount Sinai Medical Center in Miami Beach, Florida. Dr. Slack is also affiliated with The Mount Sinai Hospital. Dmand AI links Dr. Slack to 1 more hospital.
What medical group is Dr. Daniel Jeffrey Slack part of?
Dr. Slack is linked to Mount Sinai Institute for Liver Medicine.
Does Dr. Daniel Jeffrey Slack accept Medicare?
Yes. CMS data shows Dr. Slack billed Medicare for 87 services in 2024, and Dr. Slack accepts Medicare assignment.
Does Dr. Daniel Jeffrey Slack offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Slack as offering telehealth services.
How many Medicare patients does Dr. Daniel Jeffrey Slack see?
CMS counts 54 Medicare patients who saw Dr. Slack in 2024, with an average age of 73.
Show 8 more questionsShow fewer questions
Is Dr. Daniel Jeffrey Slack board certified?
Yes. Dr. Slack is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine.
What services does Dr. Daniel Jeffrey Slack bill to Medicare?
In 2024, Dr. Slack's most billed Medicare services were medicare service (G2211), surgery: heart and blood vessels (36415) and hospital inpatient care (99223).
Where did Dr. Daniel Jeffrey Slack go to medical school?
Dr. Slack graduated from University of Maryland School of Medicine in 2018.
What drugs does Dr. Daniel Jeffrey Slack prescribe most?
In 2024 Medicare Part D data, Dr. Slack's most prescribed drugs by claims were Levothyroxine Sodium, Metformin HCl ER and Atorvastatin Calcium.
Has Dr. Daniel Jeffrey Slack received payments from drug or device companies?
CMS Open Payments shows $66 in general payments to Dr. Slack from 2 companies from 2022 to 2023. The largest total came from Medtronic, Inc.
How long has Dr. Daniel Jeffrey Slack been practicing?
Dr. Slack graduated from medical school in 2018, 8 years ago.
Does Dr. Daniel Jeffrey Slack do research?
Dmand AI links 10 publications to Dr. Slack, published from 2020 to 2024.
Who does Dr. Daniel Jeffrey Slack publish with?
Dr. Slack's most frequent co-authors are Joshua David Safer, MD (5 shared papers), Abdelrahman Nimeri, MD (3 shared papers) and Robert Anthony Catania, MD (1 shared paper).
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