Dr. Christian Grommes, MD
- Medicare services, 2024
- 511
- Medicare patients, 2024
- 166
- Part D claims, 2024
- 263
- Publications
- 68
- Clinical trials
- 1
- Practice address
- 1275 York Avenue, New York, NY 10065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grommes' professional email, personal email and mobile number
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Dr. Christian Grommes is a neurologist in New York, New York
Dr. Grommes practices at Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center.
Dr. Grommes' NPI, 1720291727, was assigned on May 7, 2007. Dr. Grommes holds Ohio license 57.010163.
- NPI
- 1720291727NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052484698
- NPI enumeration date
- May 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christian Grommes practices at Memorial Sloan Kettering Cancer Center in New York, New York
Dr. Grommes' primary practice is Memorial Sloan Kettering Cancer Center, at 1275 York Avenue, New York, NY 10065.
- Memorial Sloan Kettering Cancer Center1275 York Avenue, New York, NY 10065
Source: Dmand AI Affiliation Data
Dr. Christian Grommes is affiliated with 2 sites of care and 4 medical groups
Dr. Grommes' 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 Hematology Lymphoma Group. Dmand AI also links Dr. Grommes to 3 more medical groups 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. Christian Grommes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grommes practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Sloan Kettering Cancer Center | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Memorial Sloan Kettering Cancer Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christian Grommes is one of 1,489 neurologists in New York
Neurology is Dr. Grommes' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Grommes is licensed in Ohio.
Specialties and state licenses
- Neurology, OhioPrimary
Neurologists near Dr. Grommes
Counts of neurologists 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. Christian Grommes billed Medicare for 511 services in 2024
CMS data shows 511 Medicare services from Dr. Grommes across 7 procedure codes in 2024, for 166 Medicare patients. Medicare paid $57,544 for them.
Dr. Grommes' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6002024: 47920%
- Other services
- 2023: 02024: 32
Where Dr. Grommes' Medicare services took place, 2024
- In an office42683%
- In a facility8517%
Dr. Grommes compared with the New York median for neurologists, 2024
- Dr. Grommes
- New York median
- Medicare services
- 511vs 37636% above
- Medicare patients
- 166vs 19013% below
- Part D claims
- 90vs 37576% below
Medians across 1,462 neurologists in New York with Dmand AI profiles that report each measure.
Dr. Grommes' 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. Christian Grommes treated 166 Medicare patients in 2024, average age 73
CMS counts 166 Medicare patients who saw Dr. Grommes in 2024. The largest group is 65 to 74, with 78 patients. 73% of them have high blood pressure, and 72% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.51, 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. Grommes' median patient age at 71, with 53% women.
Dr. Grommes' Medicare patients by age, 2024
Dr. Grommes' Medicare patients by sex, 2024
- Women9758%
- Men6942%
Chronic conditions among Dr. Grommes' Medicare patients, 2024
- High blood pressure73%
- High cholesterol72%
- Mood disorders40%
- Arthritis39%
- Anxiety38%
- Depression34%
- Stroke or TIA33%
- Diabetes30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grommes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christian Grommes wrote 263 Medicare Part D claims in 2024
In 2024, Dr. Grommes wrote 263 Medicare Part D claims for 56 patients. 78% of them were for generic drugs. CMS names the drug for 90 of them, across 5 drugs with 11 or more claims each, at $618,795 in total drug cost. In 2023, CMS named 211 claims across 12 drugs.
Dr. Grommes' Part D claims by kind of drug, 2024
- Generic206 claims78%
- Brand-name and other57 claims22%
Dr. Grommes' 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. Grommes' Part D claims, 2024
- Antibiotics4%11 of 263 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: 2112024: 9057%
Drugs named by CMS: 5 in 2024, 12 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. Christian Grommes scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Grommes for performance year 2024, reported as part of a group. Dr. Grommes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grommes as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Grommes' MIPS scores, performance year 2024
- 82of 100Final score
- 73.6of 100Quality
- 40of 100Improvement Activities
- 66of 100Cost
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. Christian Grommes has 68 publications on record
Dmand AI links 68 papers to Dr. Grommes, published from 2009 to 2025. 2017 was the busiest year, with 6. The most frequent topics are Central Nervous System Neoplasms, Lymphoma and Antineoplastic Combined Chemotherapy Protocols. Dr. Grommes has published most often in Neuro Oncol. Dr. Grommes' most frequent co-authors are Elena Pentsova, MD, Lauren Rhea Schaff, MD and Thomas Joseph Kaley, MD.
Dr. Grommes' papers by year, 2016 to 2025
Topics Dr. Grommes writes about most
- Central Nervous System Neoplasms
- Lymphoma
- Antineoplastic Combined Chemotherapy Protocols
- Brain Neoplasms
- Methotrexate
- Lymphoma, Non-Hodgkin
- Glioma
- Magnetic Resonance Imaging
Dr. Grommes' most frequent co-authors
- Elena Pentsova, MD15 shared papers
- Lauren Rhea Schaff, MD15 shared papers
- Thomas Joseph Kaley, MD12 shared papers
Recent publications by Dr. Grommes
Br J Ophthalmol
Int J Radiat Oncol Biol Phys
See who Dr. Grommes researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grommes works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christian Grommes has worked on 1 clinical trial
Dmand AI links Dr. Grommes to 1 clinical trial. Conditions studied include Intraocular Lymphoma and Eye Neoplasms.
Conditions in Dr. Grommes' trials
- Intraocular Lymphoma
- Eye Neoplasms
Recent clinical trials with Dr. Grommes
Phase I Trial of Pomalidomide for Patients With Relapsed/Refractory Primary CNS Lymphoma and Primary Vitreoretinal Lymphoma (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Christian Grommes received $20,323 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Grommes from 6 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 52% of the total. BTG International, Inc. paid the most, $9,329.
General payments to Dr. Grommes by program year, 2016 to 2025
General payments to Dr. Grommes by kind, 2016 to 2025
- Consulting fees$10,62352%
- Speaker and faculty fees$8,27541%
- Food and beverage$7304%
- Travel and lodging$6953%
Companies that paid Dr. Grommes 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. Christian Grommes'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) |
| 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. Christian Grommes
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. Christian Grommes' NPI number?
Dr. Christian Grommes' NPI number is 1720291727. It was assigned on May 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Christian Grommes?
Dr. Christian Grommes is a neurologist in New York, New York. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Christian Grommes practice?
Dr. Grommes practices at 1275 York Avenue, New York, NY 10065. Dr. Grommes' 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. Grommes to 3 medical groups and 1 home health agency.
What is Dr. Christian Grommes' medical license number?
Dr. Grommes holds Ohio license 57.010163.
Which hospitals is Dr. Christian Grommes affiliated with?
Dr. Grommes practices at Memorial Sloan Kettering Cancer Center in New York, New York.
What medical group is Dr. Christian Grommes part of?
Dr. Grommes is linked to Memorial Hematology Lymphoma Group. Dmand AI links Dr. Grommes to 3 more medical groups.
Does Dr. Christian Grommes accept Medicare?
Yes. CMS data shows Dr. Grommes billed Medicare for 511 services in 2024, and Dr. Grommes accepts Medicare assignment.
Does Dr. Christian Grommes offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Grommes as offering telehealth services.
What is Dr. Christian Grommes' MIPS score?
Dr. Grommes' MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Christian Grommes see?
CMS counts 166 Medicare patients who saw Dr. Grommes in 2024, with an average age of 73.
Show 6 more questionsShow fewer questions
What services does Dr. Christian Grommes bill to Medicare?
In 2024, Dr. Grommes' most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and hospital inpatient care (99233).
What drugs does Dr. Christian Grommes prescribe most?
In 2024 Medicare Part D data, Dr. Grommes' most prescribed drugs by claims were Imbruvica, Levetiracetam and Xarelto.
Has Dr. Christian Grommes received payments from drug or device companies?
CMS Open Payments shows $20,323 in general payments to Dr. Grommes from 6 companies from 2016 to 2025. The largest total came from BTG International, Inc.
How long has Dr. Christian Grommes been practicing?
Dr. Grommes graduated from medical school in 2000, 26 years ago.
Does Dr. Christian Grommes do research?
Dmand AI links 68 publications to Dr. Grommes, published from 2009 to 2025. Dr. Grommes has worked on 1 clinical trial.
Who does Dr. Christian Grommes publish with?
Dr. Grommes' most frequent co-authors are Elena Pentsova, MD (15 shared papers), Lauren Rhea Schaff, MD (15 shared papers) and Thomas Joseph Kaley, MD (12 shared papers).
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