Siddharth Ramanathan
- Part D claims, 2026
- 80
- Publications
- 14
- Hospital affiliations
- 1
- Industry payments
- $776
- State license
- 1
- Practice address
- 2600 Navarre Ave, Oregon, OH 43616
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy St Charles Acute Inpatient Rehabilitation - Unit
Acute Care Hospital-Unit · Oregon, Ohio
Find Siddharth Ramanathan'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.
Siddharth Ramanathan is a general surgeon in Oregon, Ohio
Siddharth Ramanathan practices at Mercy St Charles Acute Inpatient Rehabilitation - Unit in Oregon, Ohio.
Siddharth Ramanathan's NPI, 1659055606, was assigned on June 12, 2023. Siddharth Ramanathan holds Michigan license 4351051561.
- NPI
- 1659055606NPI Registry (opens in a new tab)
- NPI enumeration date
- June 12, 2023
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Siddharth Ramanathan practices at Mercy St Charles Acute Inpatient Rehabilitation - Unit in Oregon, Ohio
Siddharth Ramanathan's primary practice is Mercy St Charles Acute Inpatient Rehabilitation - Unit, at 2600 Navarre Ave, Oregon, OH 43616.
- Mercy St Charles Acute Inpatient Rehabilitation - Unit2600 Navarre Ave, Oregon, OH 43616
Source: Dmand AI Affiliation Data
Siddharth Ramanathan is affiliated with 1 site of care
Siddharth Ramanathan's primary practice is Mercy St Charles Acute Inpatient Rehabilitation - Unit in Oregon, Ohio.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Siddharth Ramanathan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Siddharth Ramanathan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy St Charles Acute Inpatient Rehabilitation - Unit | Available with a free account |
Source: Dmand AI Technology Install Data
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Siddharth Ramanathan is one of 1,056 general surgeons in Ohio
Surgery is Siddharth Ramanathan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Siddharth Ramanathan is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Siddharth Ramanathan
Counts of general surgeons 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
Siddharth Ramanathan's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Siddharth Ramanathan's median patient age at 66, with 38% women.
Siddharth Ramanathan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women38%
- Men63%
Source: Dmand AI Patient Panel Data
Siddharth Ramanathan wrote 80 Medicare Part D claims in 2026
In 2026, Siddharth Ramanathan wrote 80 Medicare Part D claims for 43 patients. 99% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $35 in total drug cost.
Siddharth Ramanathan's Part D claims by kind of drug, 2026
- Generic79 claims99%
- Brand-name and other1 claims1%
Siddharth Ramanathan'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 Siddharth Ramanathan's Part D claims, 2026
- Opioids23%18 of 80 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
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Siddharth Ramanathan has 14 publications on record
Dmand AI links 14 papers to Siddharth Ramanathan, published from 2022 to 2025. 2023 was the busiest year, with 6. The most frequent topics are Genetic Testing and Prostatic Neoplasms. Siddharth Ramanathan has published most often in Cureus. Siddharth Ramanathan's most frequent co-authors are Savitha Balaraman, MD, Andrew Stephen Korman, MD and James Fontanesi, MD.
Siddharth Ramanathan's papers by year, 2022 to 2025
Topics Siddharth Ramanathan writes about most
- Genetic Testing
- Prostatic Neoplasms
Siddharth Ramanathan's most frequent co-authors
- Savitha Balaraman, MD4 shared papers
- Andrew Stephen Korman, MD3 shared papers
- James Fontanesi, MD2 shared papers
Recent publications by Siddharth Ramanathan
Int J Radiat Oncol Biol Phys
Clin Lung Cancer
See who Siddharth Ramanathan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Siddharth Ramanathan works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Siddharth Ramanathan received $776 in industry payments from 2024 to 2025
CMS Open Payments shows 13 general payments to Siddharth Ramanathan from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $235.
General payments to Siddharth Ramanathan by program year, 2024 to 2025
Companies that paid Siddharth Ramanathan the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Siddharth Ramanathan'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Siddharth Ramanathan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Siddharth Ramanathan's NPI number?
Siddharth Ramanathan's NPI number is 1659055606. It was assigned on June 12, 2023, and it is active in the NPI Registry.
What does Siddharth Ramanathan specialize in?
Siddharth Ramanathan is a general surgeon in Oregon, Ohio. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Siddharth Ramanathan practice?
Siddharth Ramanathan practices at 2600 Navarre Ave, Oregon, OH 43616. Siddharth Ramanathan's primary practice is Mercy St Charles Acute Inpatient Rehabilitation - Unit in Oregon, Ohio.
What is Siddharth Ramanathan's email address?
Dmand AI checks professional and personal email addresses for Siddharth Ramanathan through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Siddharth Ramanathan's medical license number?
Siddharth Ramanathan holds Michigan license 4351051561.
Which hospitals is Siddharth Ramanathan affiliated with?
Dmand AI links Siddharth Ramanathan to 1 hospital. A free account names it, with the health system it belongs to.
What drugs does Siddharth Ramanathan prescribe most?
In 2024 Medicare Part D data, Siddharth Ramanathan's most prescribed drugs by claims were Oxycodone HCl.
Has Siddharth Ramanathan received payments from drug or device companies?
CMS Open Payments shows $776 in general payments to Siddharth Ramanathan from 8 companies from 2024 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Siddharth Ramanathan been practicing?
Siddharth Ramanathan's NPI was assigned in 2023.
Does Siddharth Ramanathan do research?
Dmand AI links 14 publications to Siddharth Ramanathan, published from 2022 to 2025.
Who does Siddharth Ramanathan publish with?
Siddharth Ramanathan's most frequent co-authors are Savitha Balaraman, MD (4 shared papers), Andrew Stephen Korman, MD (3 shared papers) and James Fontanesi, MD (2 shared papers).
What EHR does Siddharth Ramanathan's practice use?
Dmand AI tracks the EHR system at Mercy St Charles Acute Inpatient Rehabilitation - Unit. The vendor and product are available with a free Dmand AI account.
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