Dr. Daniel J. Slack

Endocrinology
Mount Sinai
1 Gustave L Levy Pl, 
New York, NY 
Accepting New Patients
Offers Telehealth
Referral required
Before you request
Mount Sinai
1 Gustave L Levy Pl, 
New York, NY 

Overview

Daniel Slack is an Endocrinologist practicing medicine in New York, New York.

His clinical expertise encompasses Adrenal Insufficiency Pediatric, Type 2 Diabetes (T2D), Hyperthyroidism, Stent Placement, and Hormone Replacement Therapy (HRT).

He is actively involved in clinical research, co-authoring 13 peer reviewed articles. Dr. Slack is currently accepting new patients.

Specialties

Endocrinology

Licenses

Hospitalist in NY

Hospital Affiliations

Mount Sinai Beth Israel
Mount Sinai Hospital

Languages Spoken

English

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Health First
  • HMO
  • POS
Horizon Healthcare
  • EPO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
MetroPlus Health
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE-MEDICAID PLAN
Northwell Health
  • INSURANCE PLAN
Oscar
  • EPO
  • HMO
  • PPO
Sunflower Health Plan
  • HMO
  • MANAGED MEDICAID PLAN
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
VNS Health
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 15 Less Insurance Carriers -

Locations

Mount Sinai
1 Gustave L Levy Pl, New York, NY 10029

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

13 Total Publications

Corrigendum to "Choice of Hormone Assay to Monitor Feminizing Gender-Affirming Hormone Therapy" [Endocrine Practice 31(12);2025:1521-1529].
Corrigendum to "Choice of Hormone Assay to Monitor Feminizing Gender-Affirming Hormone Therapy" [Endocrine Practice 31(12);2025:1521-1529].
Journal: Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
Published: June 04, 2026
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Office

180 Fort Washington Ave Rm 904, 
New York, NY 
 (3.3 miles away)
212-305-2663
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Marcella Walker is an Endocrinologist practicing medicine in New York, New York. Dr. Walker is highly rated in 15 conditions, according to our data. Her clinical expertise encompasses Hyperparathyroidism, Osteoporosis, Postmenopausal Osteoporosis, Hypercalcemia, and Parathyroidectomy. Dr. Walker is currently accepting new patients.

Frequently Asked Questions about Dr. Daniel J. Slack

How do I make an appointment with Dr. Daniel J. Slack?

You can book an appointment with Dr. Daniel J. Slack by calling their office at 212-241-6500. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Daniel J. Slack a top-rated expert for Adrenal Insufficiency Pediatric?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Daniel J. Slack is classified as an Experienced expert for Adrenal Insufficiency Pediatric, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Daniel J. Slack specialize in?

While Dr. Daniel J. Slack is a Endocrinology, they have specific expertise in Adrenal Insufficiency Pediatric, Type 2 Diabetes (T2D), and Hyperthyroidism. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Endocrinology.

Does Dr. Daniel J. Slack participate in research or clinical trials?

Yes. Dr. Daniel J. Slack has published 13 articles and abstracts on conditions like Adrenal Insufficiency Pediatric. You can view a list of Dr. Daniel J. Slack's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Daniel J. Slack accept my insurance?

Dr. Daniel J. Slack accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 212-241-6500 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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