Dr. Jonathan B. Ramharack, MD
- Medicare services, 2024
- 1,003
- Medicare patients, 2024
- 408
- Part D claims, 2024
- 204
- Hospital affiliations
- 6
- Industry payments
- $220
- Practice address
- 3219 State Rte 46 W, Parsippany, NJ 07054
- Practice phone
- Call (973) 450-2908
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Llanfair House
Parsippany, New Jersey
Find Dr. Ramharack'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. Jonathan B. Ramharack is an internist in Parsippany, New Jersey
Dr. Ramharack practices at Llanfair House in Parsippany, New Jersey.
Dr. Ramharack's NPI, 1013234517, was assigned on April 23, 2010. Dr. Ramharack holds Colorado license 49081.
- NPI
- 1013234517NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133243967
- NPI enumeration date
- April 23, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (973) 450-2908
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan B. Ramharack practices at Llanfair House in Parsippany, New Jersey
Dr. Ramharack's primary practice is Llanfair House, at 3219 State Rte 46 W, Parsippany, NJ 07054 in Morris County. The practice phone is (973) 450-2908.
- Llanfair House3219 State Rte 46 W, Parsippany, NJ 07054 · Morris CountyPhone(973) 450-2908
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan B. Ramharack is affiliated with 8 sites of care and 8 medical groups
Dr. Ramharack's primary practice is Llanfair House in Parsippany, New Jersey. Dr. Ramharack is also affiliated with Phelps Hospital. The medical group on file is Copiah County Medical Center. Dmand AI also links Dr. Ramharack to 5 more hospitals, 7 medical groups and 1 hospice, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan B. Ramharack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ramharack practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Llanfair House | Available with a free account |
| +7 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan B. Ramharack is one of 4,226 internists in New Jersey
Internal medicine is Dr. Ramharack's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Ramharack's licenses on file in 3 states: Colorado, New York and Virginia.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
- Specialist, New York
- Virginia license
Internists near Dr. Ramharack
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. Jonathan B. Ramharack billed Medicare for 1,003 services in 2024
CMS data shows 1,003 Medicare services from Dr. Ramharack across 6 procedure codes in 2024, for 408 Medicare patients. Medicare paid $141,799 for them.
Dr. Ramharack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7022024: 84020%
- Other services
- 2023: 2592024: 12950%
- Surgery
- 2023: 172024: 34100%
Where Dr. Ramharack's Medicare services took place, 2024
- In an office12913%
- In a facility87487%
Dr. Ramharack compared with the New Jersey median for internists, 2024
- Dr. Ramharack
- New Jersey median
- Medicare services
- 1,003vs 72339% above
- Medicare patients
- 408vs 23177% above
- Part D claims
- 32vs 83096% below
Medians across 4,086 internists in New Jersey with Dmand AI profiles that report each measure.
Dr. Ramharack'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. Ramharack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ramharack and other internists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan B. Ramharack treated 408 Medicare patients in 2024, average age 77
CMS counts 408 Medicare patients who saw Dr. Ramharack in 2024. The largest group is 75 to 84, with 152 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 3.05, 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. Ramharack's median patient age at 81, with 54% women.
Dr. Ramharack's Medicare patients by age, 2024
Dr. Ramharack's Medicare patients by sex, 2024
- Women21152%
- Men19748%
Chronic conditions among Dr. Ramharack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease68%
- Heart failure65%
- Chronic kidney disease59%
- Diabetes55%
- Atrial fibrillation54%
- Arthritis52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ramharack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women54%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan B. Ramharack wrote 204 Medicare Part D claims in 2024
In 2024, Dr. Ramharack wrote 204 Medicare Part D claims for 75 patients. 84% of them were for generic drugs. CMS names the drug for 32 of them, across 2 drugs with 11 or more claims each, at $3,740 in total drug cost. In 2023, CMS named 101 claims across 9 drugs.
Dr. Ramharack's Part D claims by kind of drug, 2024
- Generic171 claims84%
- Brand-name33 claims16%
Dr. Ramharack'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. Ramharack's Part D claims, 2024
- Opioids8%16 of 204 claims
- Antibiotics11%22 of 204 claims
- Antipsychotics, patients 65 and over8%16 of 204 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: 1012024: 3268%
Drugs named by CMS: 2 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. Jonathan B. Ramharack offers telehealth to Medicare patients
Dr. Ramharack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ramharack as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jonathan B. Ramharack received $220 in industry payments from 2017 to 2024
CMS Open Payments shows 6 general payments to Dr. Ramharack from 5 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Cardiovascular Systems Inc. paid the most, $101.
General payments to Dr. Ramharack by program year, 2017 to 2024
Companies that paid Dr. Ramharack the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jonathan B. Ramharack'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 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) |
| 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. Jonathan B. Ramharack
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. Jonathan B. Ramharack's NPI number?
Dr. Jonathan B. Ramharack's NPI number is 1013234517. It was assigned on April 23, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan B. Ramharack?
Dr. Jonathan B. Ramharack is an internist in Parsippany, New Jersey. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jonathan B. Ramharack practice?
Dr. Ramharack practices at 3219 State Rte 46 W, Parsippany, NJ 07054. Dr. Ramharack's primary practice is Llanfair House in Parsippany, New Jersey. Dmand AI also links Dr. Ramharack to 5 hospitals, 7 medical groups and 1 hospice.
What is Dr. Jonathan B. Ramharack's office phone number?
The practice phone on file for Dr. Ramharack is (973) 450-2908.
What is Dr. Jonathan B. Ramharack's medical license number?
Dr. Ramharack holds Colorado license 49081, one of the licenses on file in 3 states.
Which states has Dr. Jonathan B. Ramharack been licensed in?
Dmand AI has state licenses on file for Dr. Ramharack in Colorado, New York and Virginia.
Which hospitals is Dr. Jonathan B. Ramharack affiliated with?
Dr. Ramharack is affiliated with Phelps Hospital. Dmand AI links Dr. Ramharack to 5 more hospitals.
What medical group is Dr. Jonathan B. Ramharack part of?
Dr. Ramharack is linked to Copiah County Medical Center. Dmand AI links Dr. Ramharack to 7 more medical groups.
Does Dr. Jonathan B. Ramharack accept Medicare?
Yes. CMS data shows Dr. Ramharack billed Medicare for 1,003 services in 2024, and Dr. Ramharack accepts Medicare assignment.
Does Dr. Jonathan B. Ramharack offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ramharack as offering telehealth services.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Jonathan B. Ramharack see?
CMS counts 408 Medicare patients who saw Dr. Ramharack in 2024, with an average age of 77.
What services does Dr. Jonathan B. Ramharack bill to Medicare?
In 2024, Dr. Ramharack's most billed Medicare services were critical care (99291), critical care (99292) and medicare service (G0508).
What drugs does Dr. Jonathan B. Ramharack prescribe most?
In 2024 Medicare Part D data, Dr. Ramharack's most prescribed drugs by claims were Shingrix and Quetiapine Fumarate.
Has Dr. Jonathan B. Ramharack received payments from drug or device companies?
CMS Open Payments shows $220 in general payments to Dr. Ramharack from 5 companies from 2017 to 2024. The largest total came from Cardiovascular Systems Inc.
How long has Dr. Jonathan B. Ramharack been practicing?
Dr. Ramharack graduated from medical school in 2007, 19 years ago.
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