Dr. John Nathan Allan, MD
- Medicare services, 2024
- 970
- Medicare patients, 2024
- 312
- Part D claims, 2024
- 268
- Publications
- 63
- Clinical trials
- 12
- Practice address
- 525 East 68th Street, New York, NY 10065
- Practice phone
- Call (212) 746-5454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Allan'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. John Nathan Allan is a hematologist and oncologist in New York, New York
Dr. Allan practices at NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York, part of NewYork-Presbyterian Hospital.
Dr. Allan's NPI, 1144462441, was assigned on April 1, 2009. Dr. Allan graduated from Saint Louis University School Of Medicine in 2009. Dr. Allan's New York license number on file is 264134.
- NPI
- 1144462441NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820220205
- NPI enumeration date
- April 1, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 746-5454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Nathan Allan practices at NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York
Dr. Allan's primary practice is NewYork-Presbyterian/Weill Cornell Medical Center, at 525 East 68th Street, New York, NY 10065 in New York County. The practice phone is (212) 746-5454.
- NewYork-Presbyterian/Weill Cornell Medical Center525 East 68th Street, New York, NY 10065 · New York CountyPhone(212) 746-5454
Source: Dmand AI Affiliation Data
Dr. John Nathan Allan is affiliated with 5 sites of care and 1 medical group
Dr. Allan's primary practice is NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York, part of NewYork-Presbyterian Hospital. The medical group on file is Weill Cornell Physicians. Dmand AI also links Dr. Allan to 2 more clinical labs, 1 group practice or clinic and 1 home health agency, 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. John Nathan Allan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Allan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NewYork-Presbyterian/Weill Cornell Medical Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Nathan Allan is one of 996 hematologists and oncologists in New York
Hematology and oncology is Dr. Allan's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Allan is board certified in hematology by the American Board of Internal Medicine. Dr. Allan has a license on file in New York.
Specialties and state licenses
- Hematology and oncology, New YorkPrimary
Clinical focus
Dmand AI lists chronic anemia, chronic leukemia, immune deficiency disease, lymphoma, prostate cancer and purpura and thrombocytopenia among the conditions Dr. Allan treats.
Hematologists and oncologists near Dr. Allan
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. John Nathan Allan billed Medicare for 970 services in 2024
CMS data shows 970 Medicare services from Dr. Allan across 7 procedure codes in 2024, for 312 Medicare patients. Medicare paid $100,241 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Allan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2552024: 97023%
Dr. Allan compared with the New York median for hematologists and oncologists, 2024
- Dr. Allan
- New York median
- Medicare services
- 970vs 66845% above
- Medicare patients
- 312vs 21049% above
- Part D claims
- 138vs 25847% below
Medians across 940 hematologists and oncologists in New York with Dmand AI profiles that report each measure.
Dr. Allan'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. Allan and other hematologists and oncologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Nathan Allan treated 312 Medicare patients in 2024, average age 77
CMS counts 312 Medicare patients who saw Dr. Allan in 2024. The largest group is 65 to 74, with 134 patients. 74% of them have high cholesterol, and 70% have high blood pressure. 14% are also on Medicaid. Their average risk score is 2.36, 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. Allan's median patient age at 75, with 46% women.
Dr. Allan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Allan's Medicare patients by sex, 2024
- Women14346%
- Men16954%
Chronic conditions among Dr. Allan's Medicare patients, 2024
- High cholesterol74%
- High blood pressure70%
- Arthritis53%
- Ischemic heart disease36%
- Diabetes26%
- Mood disorders24%
- Anxiety23%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Allan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Nathan Allan wrote 268 Medicare Part D claims in 2024
In 2024, Dr. Allan wrote 268 Medicare Part D claims for 61 patients. 51% of them were for generic drugs. CMS names the drug for 138 of them, across 5 drugs with 11 or more claims each, at $1,100,746 in total drug cost. In 2023, CMS named 212 claims across 9 drugs.
Dr. Allan's Part D claims by kind of drug, 2024
- Generic136 claims51%
- Brand-name132 claims49%
Dr. Allan'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. Allan's Part D claims, 2024
- Antibiotics4%11 of 268 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: 2122024: 13835%
Drugs named by CMS: 5 in 2024, 9 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. John Nathan Allan 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. Allan for performance year 2024, reported through an alternative payment model (APM). Dr. Allan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Allan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Allan's MIPS scores, performance year 2024
- 100of 100Final score
- 85.3of 100Quality
- 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. John Nathan Allan has 63 publications on record
Dmand AI links 63 papers to Dr. Allan, published from 2014 to 2025. 2019 was the busiest year, with 12. The most frequent topics are Leukemia, Lymphocytic, Chronic, B-Cell, Antineoplastic Combined Chemotherapy Protocols and Bridged Bicyclo Compounds, Heterocyclic. Dr. Allan has published most often in Am J Hematol. Dr. Allan's most frequent co-authors are Richard R. Furman, MD, Paul Michael Barr, MD and Danielle M. Brander, MD.
Dr. Allan's papers by year, 2016 to 2025
Topics Dr. Allan writes about most
- Leukemia, Lymphocytic, Chronic, B-Cell
- Antineoplastic Combined Chemotherapy Protocols
- Bridged Bicyclo Compounds, Heterocyclic
- Piperidines
- Adenine
- Sulfonamides
- Pyrazoles
- Pyrimidines
Dr. Allan's most frequent co-authors
- Richard R. Furman, MD26 shared papers
- Paul Michael Barr, MD19 shared papers
- Danielle M. Brander, MD15 shared papers
Recent publications by Dr. Allan
Cell Mol Life Sci
Blood Cancer J
See who Dr. Allan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Allan 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. John Nathan Allan has worked on 12 clinical trials
Dmand AI links Dr. Allan to 12 clinical trials, 4 of them phase 2 studies. 3 are still active or recruiting. Conditions studied include Leukemia, Lymphocytic, Chronic, B-Cell, Leukemia, B-Cell and Waldenstrom Macroglobulinemia. Weill Medical College of Cornell University sponsors the most, 3. Open Payments lists research payments to Dr. Allan that name 3 trials.
Clinical trials with Dr. Allan by phase
- 1Phase 1: 1 trial
- 1Phase 1/2: 1 trial
- 4Phase 2: 4 trials
- 2Phase 3: 2 trials
- NonePhase 4: no trials
Conditions in Dr. Allan's trials
- Leukemia, Lymphocytic, Chronic, B-Cell
- Leukemia, B-Cell
- Waldenstrom Macroglobulinemia
- Blood Protein Disorders
- Disease Progression
Investigators on the most trials with Dr. Allan
- Rajat Bannerji, MD, PhD4 shared trials
- Florin D. Andreca, MD2 shared trials
- Leslie A. Andritsos, MD2 shared trials
Recent clinical trials with Dr. Allan
A Phase II Trial of Early Intervention With Acalabrutinib in Patients With CLL at High Risk for Richter's Transformation (opens in a new tab)
Umbralisib Plus Ublituximab (U2) in Progressive CLL After Novel Therapy (opens in a new tab)
Daratumumab Plus Ibrutinib in Patients With Waldenstrӧm's Macroglobulinemia (opens in a new tab)
Phase 1/2 Study of TP-0903 (an Inhibitor of AXL Kinase) in Patients With Previously Treated CLL (opens in a new tab)
A Phase 1, Open-label Study of SNX-5422 Added to Ibrutinib in Chronic Lymphocytic Leukemia Subjects With Residual Disease (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John Nathan Allan received $671,307 in industry payments from 2016 to 2025
CMS Open Payments shows 718 general payments to Dr. Allan from 23 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 45% of the total. BeiGene, Ltd. paid the most, $187,054. It also lists 35 research payments totaling $20,125 from 2016 to 2025, naming 3 clinical trials.
General payments to Dr. Allan by program year, 2016 to 2025
General payments to Dr. Allan by kind, 2016 to 2025
- Speaker and faculty fees$299,67545%
- Consulting fees$284,08642%
- Travel and lodging$64,97610%
- Food and beverage$15,5762%
- Other$6,9941%
Companies that paid Dr. Allan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Nathan Allan graduated from Saint Louis University School Of Medicine
Dr. Allan graduated from Saint Louis University School Of Medicine in 2009.
- Medical school
- Board certified in hematology
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. John Nathan Allan accepts plans from 17 insurance carriers
Dr. Allan is in network with 17 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- United Healthcare
- Elevance
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- +9 more carriersWith a free account
Plan types Dr. Allan accepts, by number of carriers
- PPO11
- Medicare9
- HMO8
- EPO4
- POS4
- Medicaid3
Source: Dmand AI Insurance Network Data
Sources for Dr. John Nathan Allan'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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. John Nathan Allan
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. John Nathan Allan's NPI number?
Dr. John Nathan Allan's NPI number is 1144462441. It was assigned on April 1, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. John Nathan Allan?
Dr. John Nathan Allan is a hematologist and oncologist in New York, New York. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. John Nathan Allan practice?
Dr. Allan practices at 525 East 68th Street, New York, NY 10065. Dr. Allan's primary practice is NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York, part of NewYork-Presbyterian Hospital. Dmand AI also links Dr. Allan to 2 clinical labs, 1 group practice or clinic and 1 home health agency.
What is Dr. John Nathan Allan's office phone number?
The practice phone on file for Dr. Allan is (212) 746-5454.
What is Dr. John Nathan Allan's medical license number?
Dr. Allan's New York license number on file is 264134.
Which hospitals is Dr. John Nathan Allan affiliated with?
Dr. Allan practices at NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York.
What medical group is Dr. John Nathan Allan part of?
Dr. Allan is linked to Weill Cornell Physicians.
Does Dr. John Nathan Allan accept Medicare?
Yes. CMS data shows Dr. Allan billed Medicare for 970 services in 2024, and Dr. Allan accepts Medicare assignment.
Does Dr. John Nathan Allan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Allan as offering telehealth services.
What is Dr. John Nathan Allan's MIPS score?
Dr. Allan's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. John Nathan Allan see?
CMS counts 312 Medicare patients who saw Dr. Allan in 2024, with an average age of 77.
Is Dr. John Nathan Allan board certified?
Yes. Dr. Allan is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. John Nathan Allan bill to Medicare?
In 2024, Dr. Allan's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and hospital inpatient care (99233).
Where did Dr. John Nathan Allan go to medical school?
Dr. Allan graduated from Saint Louis University School Of Medicine in 2009.
What drugs does Dr. John Nathan Allan prescribe most?
In 2024 Medicare Part D data, Dr. Allan's most prescribed drugs by claims were Brukinsa, Valacyclovir and Venclexta.
Has Dr. John Nathan Allan received payments from drug or device companies?
CMS Open Payments shows $671,307 in general payments to Dr. Allan from 23 companies from 2016 to 2025. The largest total came from BeiGene, Ltd.
How long has Dr. John Nathan Allan been practicing?
Dr. Allan graduated from medical school in 2009, 17 years ago.
Does Dr. John Nathan Allan do research?
Dmand AI links 63 publications to Dr. Allan, published from 2014 to 2025. Dr. Allan has worked on 12 clinical trials.
Who does Dr. John Nathan Allan publish with?
Dr. Allan's most frequent co-authors are Richard R. Furman, MD (26 shared papers), Paul Michael Barr, MD (19 shared papers) and Danielle M. Brander, MD (15 shared papers).
What insurance does Dr. John Nathan Allan accept?
Dr. Allan is in network with 17 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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