Dr. John R. Karlen, MD
- Medicare services, 2016
- 88
- Part D claims, 2020
- 24
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 224 W Exchange St, Akron, OH 44302-1704
- Practice phone
- Call (330) 344-6041
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gynecologic Oncologists Of Northeastern Ohio
Women's health practice · Akron, Ohio
Find Dr. Karlen'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 R. Karlen is a gynecologic oncologist in Danville, Illinois
Dr. Karlen practices at Gynecologic Oncologists Of Northeastern Ohio in Akron, Ohio.
Dr. Karlen's NPI, 1619972031, was assigned on June 14, 2005. Dr. Karlen holds Ohio license 35-037937.
- NPI
- 1619972031NPI Registry (opens in a new tab)
- NPI enumeration date
- June 14, 2005
- NPI status
- Active
- Practice phone
- (330) 344-6041
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John R. Karlen practices in Akron and Danville
Dr. Karlen's primary practice is Gynecologic Oncologists of Northeastern Ohio, at 224 W Exchange St, Akron, OH 44302-1704. The practice phone is (330) 344-6041. The NPI Registry lists Dr. Karlen's practice address as 812 N Logan Ave, Danville, IL 61832.
- Gynecologic Oncologists of Northeastern OhioPrimary224 W Exchange St, Akron, OH 44302-1704Phone(330) 344-6041
- NPI Registry address812 N Logan Ave, Danville, IL 61832 · Vermilion CountyPhone(330) 344-6041
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John R. Karlen is affiliated with 1 site of care and 1 medical group
Dr. Karlen's primary practice is Gynecologic Oncologists Of Northeastern Ohio in Akron, Ohio. Dmand AI also links Dr. Karlen to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John R. Karlen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karlen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gynecologic Oncologists Of Northeastern Ohio | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John R. Karlen is one of 70 gynecologic oncologists in Illinois
Gynecologic oncology is Dr. Karlen's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Karlen is licensed in Ohio.
Specialties and state licenses
- Gynecologic oncology, OhioPrimary
Gynecologic oncologists near Dr. Karlen
Counts of gynecologic 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 R. Karlen billed Medicare for 88 services in 2016
CMS data shows 88 Medicare services from Dr. Karlen across 4 procedure codes in 2016. Medicare paid $3,441 for them. Every service was in an office.
Dr. Karlen's Medicare services by type, 2016
- Office and hospital visits56
- Other services32
Dr. Karlen compared with the Illinois median for gynecologic oncologists, 2016
- Dr. Karlen
- Illinois median
- Medicare services
- 88vs 21258% below
- Part D claims
- 24vs 3429% below
Medians across 71 gynecologic oncologists in Illinois with Dmand AI profiles that report each measure.
Dr. Karlen's most billed Medicare procedure codes, 2016
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. Karlen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karlen and other gynecologic oncologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John R. Karlen wrote 24 Medicare Part D claims in 2020
In 2020, Dr. Karlen wrote 24 Medicare Part D claims. They cover 2 drugs, with $5,572 in total drug cost. In 2019, CMS named 25 claims across 2 drugs.
Dr. Karlen's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 252020: 244%
Drugs named by CMS: 2 in 2020, 2 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Sources for Dr. John R. Karlen'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. John R. Karlen
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 R. Karlen's NPI number?
Dr. John R. Karlen's NPI number is 1619972031. It was assigned on June 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John R. Karlen?
Dr. John R. Karlen is a gynecologic oncologist in Danville, Illinois. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. John R. Karlen practice?
Dr. Karlen practices at 224 W Exchange St, Akron, OH 44302-1704. Dr. Karlen also practices at 812 N Logan Ave, Danville, IL 61832. Dr. Karlen's primary practice is Gynecologic Oncologists Of Northeastern Ohio in Akron, Ohio. Dmand AI also links Dr. Karlen to 1 medical group.
What is Dr. John R. Karlen's office phone number?
The practice phone on file for Dr. Karlen is (330) 344-6041.
What is Dr. John R. Karlen's medical license number?
Dr. Karlen holds Ohio license 35-037937.
Does Dr. John R. Karlen accept Medicare?
Yes. CMS data shows Dr. Karlen billed Medicare for 88 services in 2016.
What services does Dr. John R. Karlen bill to Medicare?
In 2016, Dr. Karlen's most billed Medicare services were office visit, established patient (99213), medicare temporary code (Q0091) and medicare service (G0101).
What drugs does Dr. John R. Karlen prescribe most?
In 2020 Medicare Part D data, Dr. Karlen's most prescribed drugs by claims were Eliquis and Olanzapine.
How long has Dr. John R. Karlen been practicing?
Dr. Karlen's NPI was assigned in 2005.
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