Dr. Mark A. Schattner, MD

  • New York, NY
  • Internist
NPI1063483907PAC ID9335271873
Medicare services, 2024
774
Medicare patients, 2024
556
Part D claims, 2024
495
Publications
96
Clinical trials
2
Practice address
1275 York Avenue, New York, NY 10065
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Memorial Sloan Kettering Cancer Center

Hospital · New York, New York

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Dr. Mark A. Schattner is an internist in New York, New York

Dr. Schattner practices at Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center.

Dr. Schattner's NPI, 1063483907, was assigned on January 30, 2006. Dr. Schattner graduated from Perelman School of Medicine - Philadelphia in 1995. Dr. Schattner holds New York license 205323.

NPI and contact details
Medicare PAC ID
9335271873
NPI enumeration date
January 30, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
57
Medical school graduation
1995

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark A. Schattner practices at Memorial Sloan Kettering Cancer Center in New York, New York

Dr. Schattner's primary practice is Memorial Sloan Kettering Cancer Center, at 1275 York Avenue, New York, NY 10065.

Source: Dmand AI Affiliation Data

Dr. Mark A. Schattner is affiliated with 3 sites of care and 2 medical groups

Dr. Schattner's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. The medical group on file is Memorial Sloan Kettering Monmouth. Dmand AI also links Dr. Schattner to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Schattner

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark A. Schattner's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schattner practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Memorial Sloan Kettering Cancer CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark A. Schattner is one of 9,643 internists in New York

Internal medicine is Dr. Schattner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Schattner is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Schattner's licenses on file in 3 states: New York, Florida and New Jersey.

Specialties and state licenses

  • Internal medicine, New YorkPrimaryLicense 205323 · 1996 to 2026 · taxonomy 207R00000X
  • Florida licenseSince 2021
  • New Jersey license2017 to 2027

Clinical focus

Dmand AI lists acid reflux, colonoscopy, intestinal or bowel obstruction, pancreas or bile duct endoscopy (ERCP) and upper GI endoscopy among the conditions Dr. Schattner treats.

Internists near Dr. Schattner

Counts of internists 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. Mark A. Schattner billed Medicare for 774 services in 2024

CMS data shows 774 Medicare services from Dr. Schattner across 17 procedure codes in 2024, for 556 Medicare patients. Medicare paid $96,910 for them.

Medicare services, 2024774
Medicare patients556
Paid by Medicare$96,910
Procedure codes17

Dr. Schattner's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 4092024: 4285%
Office and hospital visits
2023: 3022024: 33411%
Other services
2023: 192024: 1237%

Where Dr. Schattner's Medicare services took place, 2024

  • In an office41654%
  • In a facility35846%

Dr. Schattner compared with the New York median for internists, 2024

  • Dr. Schattner
  • New York median
Medicare services
774vs 42682% above
Medicare patients
556vs 1583.5 times
Part D claims
378vs 62239% below

Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.

Dr. Schattner'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.

See all procedures by Dr. Schattner

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark A. Schattner treated 556 Medicare patients in 2024, average age 74

CMS counts 556 Medicare patients who saw Dr. Schattner in 2024. The largest group is 65 to 74, with 254 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.13, 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. Schattner's median patient age at 72, with 51% women.

Medicare patients, 2024556
Average age74
Average risk score2.13
Also on Medicaid13%

Dr. Schattner's Medicare patients by age, 2024

Dr. Schattner's Medicare patients by sex, 2024

  • Women28451%
  • Men27249%

Chronic conditions among Dr. Schattner's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Cancer42%
  5. Ischemic heart disease40%
  6. Anxiety36%
  7. Diabetes35%
  8. Mood disorders29%

Share of Medicare patients with each condition. A patient can have several.

Dr. Schattner's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women51%
  • Men48%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark A. Schattner wrote 495 Medicare Part D claims in 2024

In 2024, Dr. Schattner wrote 495 Medicare Part D claims for 159 patients. 79% of them were for generic drugs. CMS names the drug for 378 of them, across 8 drugs with 11 or more claims each, at $132,211 in total drug cost. In 2023, CMS named 364 claims across 12 drugs.

Part D claims, 2024495
Drugs named by CMS8
Total drug cost$132,211
Part D patients159

Dr. Schattner's Part D claims by kind of drug, 2024

  • Generic393 claims79%
  • Brand-name and other102 claims21%

Dr. Schattner'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. Schattner's Part D claims, 2024

  • Antibiotics4%21 of 495 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: 3642024: 3784%

Drugs named by CMS: 8 in 2024, 12 in 2023.

See all prescribing by Dr. Schattner

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. Mark A. Schattner scored 79 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Schattner for performance year 2024, reported as part of a group. Dr. Schattner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Schattner as offering telehealth. CMS counts 554 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Schattner, more than 99% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Schattner's MIPS scores, performance year 2024

  • 79of 100Final score
  • 65.9of 100Quality
  • 40of 100Improvement Activities
  • 77of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Schattner ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
99th percentile554 procedures
Colonoscopy
70th percentile67 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Mark A. Schattner has 96 publications on record

Dmand AI links 96 papers to Dr. Schattner, published from 2008 to 2025. 2017 was the busiest year, with 8. The most frequent topics are Stomach Neoplasms, Adenocarcinoma and Pancreatic Neoplasms. Dr. Schattner has published most often in Gastrointest Endosc. Dr. Schattner's most frequent co-authors are Hans Gerdes, MD, Arnold J. Markowitz, MD and Vivian E. Strong, MD.

Papers96
Years published2008 to 2025

Dr. Schattner's papers by year, 2016 to 2025

Topics Dr. Schattner writes about most

  • Stomach Neoplasms
  • Adenocarcinoma
  • Pancreatic Neoplasms
  • Esophageal Neoplasms
  • Gastrectomy
  • Endoscopy, Gastrointestinal
  • Enteral Nutrition
  • Stents

Dr. Schattner's most frequent co-authors

Recent publications by Dr. Schattner

See all 96 publications and co-authors

See who Dr. Schattner researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schattner works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mark A. Schattner has worked on 2 clinical trials

Dmand AI links Dr. Schattner to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Pancreatic Neoplasms and Pancreatic Diseases. Memorial Sloan Kettering Cancer Center sponsors the most, 2.

Clinical trials with Dr. Schattner by phase

  1. NonePhase 1: no trials
  2. 1Phase 1/2: 1 trial
  3. NonePhase 2: no trials
  4. 1Phase 3: 1 trial
  5. NonePhase 4: no trials

Conditions in Dr. Schattner's trials

  • Pancreatic Neoplasms
  • Pancreatic Diseases

Recent clinical trials with Dr. Schattner

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Mark A. Schattner received $79,257 in industry payments from 2016 to 2024

CMS Open Payments shows 57 general payments to Dr. Schattner from 3 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 65% of the total. Boston Scientific Corporation paid the most, $42,140. It also lists 18 research payments totaling $69,762 from 2020 to 2023.

General payments to Dr. Schattner by program year, 2016 to 2024

General payments to Dr. Schattner by kind, 2016 to 2024

$79.3Kin total
  • Consulting fees$51,68865%
  • Speaker and faculty fees$17,50022%
  • Travel and lodging$8,37211%
  • Food and beverage$1,6982%

Companies that paid Dr. Schattner the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Schattner

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark A. Schattner has 1 award and honors on record

Dmand AI lists 1 award for Dr. Schattner.

Awards and honors for Dr. Schattner

  1. Undated
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Mark A. Schattner graduated from Perelman School of Medicine - Philadelphia

Dr. Schattner graduated from Perelman School of Medicine - Philadelphia in 1995.

  1. Medical schoolPerelman School of Medicine - Philadelphia
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark A. Schattner accepts plans from 10 insurance carriers

Dr. Schattner is in network with 10 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Excellus BlueCross BlueShield
  • United Healthcare
  • HCSC
  • MVP Health Care
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • +2 more carriersWith a free account

Plan types Dr. Schattner accepts, by number of carriers

  1. Medicare6
  2. PPO6
  3. EPO5
  4. POS5
  5. HMO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark A. Schattner's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark A. Schattner

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. Mark A. Schattner's NPI number?

Dr. Mark A. Schattner's NPI number is 1063483907. It was assigned on January 30, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark A. Schattner?

Dr. Mark A. Schattner is an internist in New York, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Mark A. Schattner practice?

Dr. Schattner practices at 1275 York Avenue, New York, NY 10065. Dr. Schattner's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. Schattner to 2 group practices and clinics and 1 medical group.

What is Dr. Mark A. Schattner's medical license number?

Dr. Schattner holds New York license 205323, one of the licenses on file in 3 states.

Which states has Dr. Mark A. Schattner been licensed in?

Dmand AI has state licenses on file for Dr. Schattner in New York (1996 to 2026), Florida (since 2021) and New Jersey (2017 to 2027).

Which hospitals is Dr. Mark A. Schattner affiliated with?

Dr. Schattner practices at Memorial Sloan Kettering Cancer Center in New York, New York.

What medical group is Dr. Mark A. Schattner part of?

Dr. Schattner is linked to Memorial Sloan Kettering Monmouth. Dmand AI links Dr. Schattner to 1 more medical group.

Does Dr. Mark A. Schattner accept Medicare?

Yes. CMS data shows Dr. Schattner billed Medicare for 774 services in 2024, and Dr. Schattner accepts Medicare assignment.

Does Dr. Mark A. Schattner offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Schattner as offering telehealth services.

What is Dr. Mark A. Schattner's MIPS score?

Dr. Schattner's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Mark A. Schattner see?

CMS counts 556 Medicare patients who saw Dr. Schattner in 2024, with an average age of 74.

Is Dr. Mark A. Schattner board certified?

Yes. Dr. Schattner is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Mark A. Schattner bill to Medicare?

In 2024, Dr. Schattner's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (43239) and surgery: digestive system (43238).

Where did Dr. Mark A. Schattner go to medical school?

Dr. Schattner graduated from Perelman School of Medicine - Philadelphia in 1995.

What drugs does Dr. Mark A. Schattner prescribe most?

In 2024 Medicare Part D data, Dr. Schattner's most prescribed drugs by claims were Pantoprazole Sodium, Prednisone and Omeprazole.

Has Dr. Mark A. Schattner received payments from drug or device companies?

CMS Open Payments shows $79,257 in general payments to Dr. Schattner from 3 companies from 2016 to 2024. The largest total came from Boston Scientific Corporation.

How long has Dr. Mark A. Schattner been practicing?

Dr. Schattner graduated from medical school in 1995, 31 years ago.

Does Dr. Mark A. Schattner do research?

Dmand AI links 96 publications to Dr. Schattner, published from 2008 to 2025. Dr. Schattner has worked on 2 clinical trials.

Who does Dr. Mark A. Schattner publish with?

Dr. Schattner's most frequent co-authors are Hans Gerdes, MD (39 shared papers), Arnold J. Markowitz, MD (23 shared papers) and Vivian E. Strong, MD (20 shared papers).

What insurance does Dr. Mark A. Schattner accept?

Dr. Schattner is in network with 10 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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