Dr. John Charles Gruendel, MD
- Medicare services, 2024
- 13,454
- Medicare patients, 2024
- 1,002
- Part D claims, 2024
- 10,092
- Hospital affiliations
- 3
- Industry payments
- $290
- Practice address
- 672 Stoneleigh Ave, Carmel, NY 10512
- Practice phone
- Call (914) 241-1050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Caremount Medical
Carmel, New York
Find Dr. Gruendel'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 Charles Gruendel is a cardiologist in Carmel, New York
Dr. Gruendel practices at Caremount Medical in Carmel, New York.
Dr. Gruendel's NPI, 1245201227, was assigned on January 30, 2006. Dr. Gruendel graduated from New York Medical College in 1987. Dr. Gruendel holds New York license 175379.
- NPI
- 1245201227NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688669070
- NPI enumeration date
- January 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 241-1050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Charles Gruendel practices at Caremount Medical in Carmel, New York
Dr. Gruendel's primary practice is Caremount Medical, at 672 Stoneleigh Ave, Carmel, NY 10512 in Putnam County. The practice phone is (914) 241-1050.
- Caremount Medical672 Stoneleigh Ave, Carmel, NY 10512 · Putnam CountyPhone(914) 241-1050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Charles Gruendel is affiliated with 5 sites of care and 1 medical group
Dr. Gruendel's primary practice is Caremount Medical in Carmel, New York. Dr. Gruendel is also affiliated with Putnam Hospital. The medical group on file is CareMount Medical. Dmand AI also links Dr. Gruendel to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Charles Gruendel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gruendel practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Caremount Medical | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Charles Gruendel is one of 2,265 cardiologists in New York
Cardiovascular disease is Dr. Gruendel's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Gruendel is licensed in New York.
Specialties and state licenses
- Cardiovascular disease, New YorkPrimary
Cardiologists near Dr. Gruendel
Counts of cardiologists 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 Charles Gruendel billed Medicare for 13,454 services in 2024
CMS data shows 13,454 Medicare services from Dr. Gruendel across 36 procedure codes in 2024, for 1,002 Medicare patients. Medicare paid $739,423 for them.
Dr. Gruendel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3,3172024: 3,2323%
- Lab and pathology
- 2023: 4,5322024: 3,07032%
- Office and hospital visits
- 2023: 2,8692024: 2,7843%
- Other services
- 2023: 5562024: 2,532355%
- Surgery
- 2023: 1,0192024: 9606%
- Drugs given in the office
- 2023: 9112024: 67925%
- Imaging
- 2023: 2702024: 19727%
Where Dr. Gruendel's Medicare services took place, 2024
- In an office13,05597%
- In a facility3993%
Dr. Gruendel compared with the New York median for cardiologists, 2024
- Dr. Gruendel
- New York median
- Medicare services
- 13,454vs 1,6748.0 times
- Medicare patients
- 1,002vs 61164% above
- Part D claims
- 9,787vs 1,4126.9 times
Medians across 2,211 cardiologists in New York with Dmand AI profiles that report each measure.
Dr. Gruendel'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.
Need commercial claims for Dr. Gruendel?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gruendel and other cardiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Charles Gruendel treated 1,002 Medicare patients in 2024, average age 77
CMS counts 1,002 Medicare patients who saw Dr. Gruendel in 2024. The largest group is 75 to 84, with 400 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gruendel's median patient age at 68, with 48% women.
Dr. Gruendel's Medicare patients by age, 2024
Dr. Gruendel's Medicare patients by sex, 2024
- Women50751%
- Men49549%
Chronic conditions among Dr. Gruendel's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease44%
- Arthritis43%
- Atrial fibrillation33%
- Diabetes32%
- Chronic kidney disease29%
- Heart failure21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gruendel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women48%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Charles Gruendel wrote 10,092 Medicare Part D claims in 2024
In 2024, Dr. Gruendel wrote 10,092 Medicare Part D claims for 1,275 patients. 86% of them were for generic drugs. CMS names the drug for 9,787 of them, across 73 drugs with 11 or more claims each, at $1,771,025 in total drug cost. In 2023, CMS named 9,761 claims across 69 drugs.
Dr. Gruendel's Part D claims by kind of drug, 2024
- Generic8,696 claims86%
- Brand-name and other1,396 claims14%
Dr. Gruendel'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. Gruendel's Part D claims, 2024
- Antibiotics0%26 of 10,092 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: 9,7612024: 9,787No change
Drugs named by CMS: 73 in 2024, 69 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
How Dr. John Charles Gruendel takes part in Medicare
Dr. Gruendel accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. John Charles Gruendel received $290 in industry payments from 2021 to 2025
CMS Open Payments shows 4 general payments to Dr. Gruendel from 3 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. HeartFlow, Inc. paid the most, $135.
General payments to Dr. Gruendel by program year, 2021 to 2025
Companies that paid Dr. Gruendel the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Charles Gruendel graduated from New York Medical College
Dr. Gruendel graduated from New York Medical College in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Charles Gruendel'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Charles Gruendel
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 Charles Gruendel's NPI number?
Dr. John Charles Gruendel's NPI number is 1245201227. It was assigned on January 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Charles Gruendel?
Dr. John Charles Gruendel is a cardiologist in Carmel, New York. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. John Charles Gruendel practice?
Dr. Gruendel practices at 672 Stoneleigh Ave, Carmel, NY 10512. Dr. Gruendel's primary practice is Caremount Medical in Carmel, New York. Dmand AI also links Dr. Gruendel to 2 hospitals and 1 group practice or clinic.
What is Dr. John Charles Gruendel's office phone number?
The practice phone on file for Dr. Gruendel is (914) 241-1050.
What is Dr. John Charles Gruendel's medical license number?
Dr. Gruendel holds New York license 175379.
Which hospitals is Dr. John Charles Gruendel affiliated with?
Dr. Gruendel is affiliated with Putnam Hospital. Dmand AI links Dr. Gruendel to 2 more hospitals.
What medical group is Dr. John Charles Gruendel part of?
Dr. Gruendel is linked to CareMount Medical.
Does Dr. John Charles Gruendel accept Medicare?
Yes. CMS data shows Dr. Gruendel billed Medicare for 13,454 services in 2024, and Dr. Gruendel accepts Medicare assignment.
How many Medicare patients does Dr. John Charles Gruendel see?
CMS counts 1,002 Medicare patients who saw Dr. Gruendel in 2024, with an average age of 77.
What services does Dr. John Charles Gruendel bill to Medicare?
In 2024, Dr. Gruendel's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and heart test or procedure (93000).
Show 4 more questionsShow fewer questions
Where did Dr. John Charles Gruendel go to medical school?
Dr. Gruendel graduated from New York Medical College in 1987.
What drugs does Dr. John Charles Gruendel prescribe most?
In 2024 Medicare Part D data, Dr. Gruendel's most prescribed drugs by claims were Metoprolol Succinate, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. John Charles Gruendel received payments from drug or device companies?
CMS Open Payments shows $290 in general payments to Dr. Gruendel from 3 companies from 2021 to 2025. The largest total came from HeartFlow, Inc.
How long has Dr. John Charles Gruendel been practicing?
Dr. Gruendel graduated from medical school in 1987, 39 years ago.
Selling to cardiovascular disease practices?
See cardiologists in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card