Dr. Mark H. Chaitowitz, MD
- Medicare services, 2024
- 306
- Medicare patients, 2024
- 235
- Part D claims, 2024
- 386
- Publications
- 5
- MIPS score, 2024
- 100
- Practice address
- 111 East 210th Street, Bronx, NY 10467
- Practice phone
- Call (718) 920-4321
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chaitowitz's professional email, personal email and mobile number
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Dr. Mark H. Chaitowitz is a hematologist and oncologist in Bronx, New York
Dr. Chaitowitz practices at Montefiore Einstein Hospital-Moses Campus in Bronx, New York, part of Montefiore Einstein.
Dr. Chaitowitz's NPI, 1922215680, was assigned on May 16, 2007. Dr. Chaitowitz holds New York license 253878-1.
- NPI
- 1922215680NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719069533
- NPI enumeration date
- May 16, 2007
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (718) 920-4321
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark H. Chaitowitz practices at Montefiore Einstein Hospital-Moses Campus in Bronx, New York
Dr. Chaitowitz's primary practice is Montefiore Einstein Hospital-Moses Campus, at 111 East 210th Street, Bronx, NY 10467 in Bronx County. The practice phone is (718) 920-4321.
- Montefiore Einstein Hospital-Moses Campus111 East 210th Street, Bronx, NY 10467 · Bronx CountyPhone(718) 920-4321
Source: Dmand AI Affiliation Data
Dr. Mark H. Chaitowitz is affiliated with 4 sites of care and 1 medical group
Dr. Chaitowitz's primary practice is Montefiore Einstein Hospital-Moses Campus in Bronx, New York, part of Montefiore Einstein. Dr. Chaitowitz is also affiliated with St. John's Riverside Hospital. The medical group on file is Montefiore Einstein Faculty Practice Group. Dmand AI also links Dr. Chaitowitz to 1 more group practice or clinic and 1 school health center, 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. Mark H. Chaitowitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chaitowitz practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Montefiore Einstein Hospital-Moses Campus | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark H. Chaitowitz is one of 996 hematologists and oncologists in New York
Hematology and oncology is Dr. Chaitowitz's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Chaitowitz is licensed in New York.
Specialties and state licenses
- Hematology and oncology, New YorkPrimary
Hematologists and oncologists near Dr. Chaitowitz
Counts of hematologists and oncologists 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 H. Chaitowitz billed Medicare for 306 services in 2024
CMS data shows 306 Medicare services from Dr. Chaitowitz across 7 procedure codes in 2024, for 235 Medicare patients. Medicare paid $26,842 for them.
Dr. Chaitowitz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3302024: 3067%
- Lab and pathology
- 2023: 162024: 0100%
Where Dr. Chaitowitz's Medicare services took place, 2024
- In an office18861%
- In a facility11839%
Dr. Chaitowitz compared with the New York median for hematologists and oncologists, 2024
- Dr. Chaitowitz
- New York median
- Medicare services
- 306vs 66854% below
- Medicare patients
- 235vs 21012% above
- Part D claims
- 344vs 25833% above
Medians across 940 hematologists and oncologists in New York with Dmand AI profiles that report each measure.
Dr. Chaitowitz'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. Mark H. Chaitowitz treated 235 Medicare patients in 2024, average age 72
CMS counts 235 Medicare patients who saw Dr. Chaitowitz in 2024. The largest group is 65 to 74, with 85 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 2.44, 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. Chaitowitz's median patient age at 60, with 68% women.
Dr. Chaitowitz's Medicare patients by age, 2024
Dr. Chaitowitz's Medicare patients by sex, 2024
- Women13758%
- Men9842%
Chronic conditions among Dr. Chaitowitz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes53%
- Chronic kidney disease46%
- Heart failure41%
- Ischemic heart disease40%
- Mood disorders33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chaitowitz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women68%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark H. Chaitowitz wrote 386 Medicare Part D claims in 2024
In 2024, Dr. Chaitowitz wrote 386 Medicare Part D claims for 71 patients. 35% of them were for generic drugs. CMS names the drug for 344 of them, across 9 drugs with 11 or more claims each, at $944,392 in total drug cost. In 2023, CMS named 283 claims across 7 drugs.
Dr. Chaitowitz's Part D claims by kind of drug, 2024
- Generic136 claims35%
- Brand-name250 claims65%
Dr. Chaitowitz'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: 2832024: 34422%
Drugs named by CMS: 9 in 2024, 7 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. Mark H. Chaitowitz scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Chaitowitz for performance year 2024, reported as part of a group. CMS lists Dr. Chaitowitz as offering telehealth.
- Offers telehealth
- Yes
Dr. Chaitowitz's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark H. Chaitowitz has 5 publications on record
Dmand AI links 5 papers to Dr. Chaitowitz, published from 2016 to 2025. 2019 was the busiest year, with 2. The most frequent topics are Anemia, Sickle Cell. Dr. Chaitowitz's most frequent co-authors are Caterina P. Minniti, MD, Amer Assal, MD and Ira J. Braunschweig, MD.
Dr. Chaitowitz's papers by year, 2016 to 2025
Topics Dr. Chaitowitz writes about most
- Anemia, Sickle Cell
Dr. Chaitowitz's most frequent co-authors
- Caterina P. Minniti, MD2 shared papers
- Amer Assal, MD1 shared paper
- Ira J. Braunschweig, MD1 shared paper
Recent publications by Dr. Chaitowitz
J Eur Acad Dermatol Venereol
Hemoglobin
See who Dr. Chaitowitz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chaitowitz works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark H. Chaitowitz received $13,994 in industry payments from 2016 to 2025
CMS Open Payments shows 72 general payments to Dr. Chaitowitz from 19 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 75% of the total. Pharmacosmos Therapeutics Inc. paid the most, $12,990. It also lists 1 research payment totaling $125 in 2016.
General payments to Dr. Chaitowitz by program year, 2016 to 2025
General payments to Dr. Chaitowitz by kind, 2016 to 2025
- Honoraria$10,50075%
- Food and beverage$2,00914%
- Travel and lodging$1,47011%
- Education$150%
Companies that paid Dr. Chaitowitz the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark H. Chaitowitz'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Mark H. Chaitowitz
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 H. Chaitowitz's NPI number?
Dr. Mark H. Chaitowitz's NPI number is 1922215680. It was assigned on May 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark H. Chaitowitz?
Dr. Mark H. Chaitowitz is a hematologist and oncologist in Bronx, New York. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Mark H. Chaitowitz practice?
Dr. Chaitowitz practices at 111 East 210th Street, Bronx, NY 10467. Dr. Chaitowitz's primary practice is Montefiore Einstein Hospital-Moses Campus in Bronx, New York, part of Montefiore Einstein. Dmand AI also links Dr. Chaitowitz to 1 group practice or clinic and 1 school health center.
What is Dr. Mark H. Chaitowitz's office phone number?
The practice phone on file for Dr. Chaitowitz is (718) 920-4321.
What is Dr. Mark H. Chaitowitz's medical license number?
Dr. Chaitowitz holds New York license 253878-1.
Which hospitals is Dr. Mark H. Chaitowitz affiliated with?
Dr. Chaitowitz practices at Montefiore Einstein Hospital-Moses Campus in Bronx, New York. Dr. Chaitowitz is also affiliated with St. John's Riverside Hospital.
What medical group is Dr. Mark H. Chaitowitz part of?
Dr. Chaitowitz is linked to Montefiore Einstein Faculty Practice Group.
Does Dr. Mark H. Chaitowitz accept Medicare?
Yes. CMS data shows Dr. Chaitowitz billed Medicare for 306 services in 2024.
Does Dr. Mark H. Chaitowitz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chaitowitz as offering telehealth services.
What is Dr. Mark H. Chaitowitz's MIPS score?
Dr. Chaitowitz's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Mark H. Chaitowitz see?
CMS counts 235 Medicare patients who saw Dr. Chaitowitz in 2024, with an average age of 72.
What services does Dr. Mark H. Chaitowitz bill to Medicare?
In 2024, Dr. Chaitowitz's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99222) and office visit, established patient (99213).
What drugs does Dr. Mark H. Chaitowitz prescribe most?
In 2024 Medicare Part D data, Dr. Chaitowitz's most prescribed drugs by claims were Eliquis, Hydroxyurea and Xarelto.
Has Dr. Mark H. Chaitowitz received payments from drug or device companies?
CMS Open Payments shows $13,994 in general payments to Dr. Chaitowitz from 19 companies from 2016 to 2025. The largest total came from Pharmacosmos Therapeutics Inc.
How long has Dr. Mark H. Chaitowitz been practicing?
Dr. Chaitowitz graduated from medical school in 1997, 29 years ago.
Does Dr. Mark H. Chaitowitz do research?
Dmand AI links 5 publications to Dr. Chaitowitz, published from 2016 to 2025.
Who does Dr. Mark H. Chaitowitz publish with?
Dr. Chaitowitz's most frequent co-authors are Caterina P. Minniti, MD (2 shared papers), Amer Assal, MD (1 shared paper) and Ira J. Braunschweig, MD (1 shared paper).
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