Dr. Johnathon Patrick Shaffer, MD
- Medicare services, 2024
- 280
- Medicare patients, 2024
- 136
- Part D claims, 2024
- 910
- Hospital affiliations
- 2
- Industry payments
- $909
- Practice address
- 2001 W 86th St, Indianapolis, IN 46260
- Practice phone
- Call (317) 338-2172
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension St Vincent Hospital- Indianapolis
Indianapolis, Indiana
Find Dr. Shaffer'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. Johnathon Patrick Shaffer is a neurologist in Indianapolis, Indiana
Dr. Shaffer practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana.
Dr. Shaffer's NPI, 1598129678, was assigned on April 5, 2016. Dr. Shaffer holds Indiana license 01085483A.
- NPI
- 1598129678NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759676034
- NPI enumeration date
- April 5, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (317) 338-2172
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Johnathon Patrick Shaffer practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana
Dr. Shaffer's primary practice is Ascension St Vincent Hospital- Indianapolis, at 2001 W 86th St, Indianapolis, IN 46260 in Marion County. The practice phone is (317) 338-2172.
- Ascension St Vincent Hospital- Indianapolis2001 W 86th St, Indianapolis, IN 46260 · Marion CountyPhone(317) 338-2172
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Johnathon Patrick Shaffer is affiliated with 5 sites of care and 2 medical groups
Dr. Shaffer's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dr. Shaffer is also affiliated with IU Health Methodist Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Shaffer to 1 more hospital, 2 group practices and clinics and 1 medical group, 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. Johnathon Patrick Shaffer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shaffer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St Vincent Hospital- Indianapolis | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Johnathon Patrick Shaffer is one of 338 neurologists in Indiana
Neurology is Dr. Shaffer's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Shaffer's licenses on file in 2 states: Indiana and California.
Specialties and state licenses
- Neurology, IndianaPrimary
- Orthopaedic surgery, California
Neurologists near Dr. Shaffer
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. Johnathon Patrick Shaffer billed Medicare for 280 services in 2024
CMS data shows 280 Medicare services from Dr. Shaffer across 6 procedure codes in 2024, for 136 Medicare patients. Medicare paid $23,821 for them. Every service was in an office.
Dr. Shaffer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2882024: 20628%
- Surgery
- 2023: 662024: 4729%
- Imaging
- 2023: 442024: 2739%
Dr. Shaffer compared with the Indiana median for neurologists, 2024
- Dr. Shaffer
- Indiana median
- Medicare services
- 280vs 39229% below
- Medicare patients
- 136vs 25547% below
- Part D claims
- 812vs 70615% above
Medians across 335 neurologists in Indiana with Dmand AI profiles that report each measure.
Dr. Shaffer'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. Shaffer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shaffer and other neurologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Johnathon Patrick Shaffer treated 136 Medicare patients in 2024, average age 71
CMS counts 136 Medicare patients who saw Dr. Shaffer in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have arthritis, and 75% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shaffer's median patient age at 58, with 58% women.
Dr. Shaffer's Medicare patients by age, 2024
Dr. Shaffer's Medicare patients by sex, 2024
- Women8059%
- Men5641%
Chronic conditions among Dr. Shaffer's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Depression39%
- Mood disorders39%
- Anxiety30%
- Chronic kidney disease29%
- COPD26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shaffer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Johnathon Patrick Shaffer wrote 910 Medicare Part D claims in 2024
In 2024, Dr. Shaffer wrote 910 Medicare Part D claims for 178 patients. 87% of them were for generic drugs. CMS names the drug for 812 of them, across 17 drugs with 11 or more claims each, at $78,777 in total drug cost. In 2023, CMS named 854 claims across 20 drugs.
Dr. Shaffer's Part D claims by kind of drug, 2024
- Generic796 claims87%
- Brand-name114 claims13%
Dr. Shaffer'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. Shaffer's Part D claims, 2024
- Opioids16%143 of 910 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: 8542024: 8125%
Drugs named by CMS: 17 in 2024, 20 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. Johnathon Patrick Shaffer offers telehealth to Medicare patients
Dr. Shaffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shaffer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Johnathon Patrick Shaffer received $909 in industry payments from 2021 to 2025
CMS Open Payments shows 13 general payments to Dr. Shaffer from 6 drug and device companies from 2021 to 2025. Travel and lodging make up the largest share, 54% of the total. SPR Therapeutics, Inc paid the most, $532.
General payments to Dr. Shaffer by program year, 2021 to 2025
General payments to Dr. Shaffer by kind, 2021 to 2025
- Travel and lodging$49354%
- Food and beverage$41646%
Companies that paid Dr. Shaffer the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Johnathon Patrick Shaffer'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. Johnathon Patrick Shaffer
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. Johnathon Patrick Shaffer's NPI number?
Dr. Johnathon Patrick Shaffer's NPI number is 1598129678. It was assigned on April 5, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Johnathon Patrick Shaffer?
Dr. Johnathon Patrick Shaffer is a neurologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Johnathon Patrick Shaffer practice?
Dr. Shaffer practices at 2001 W 86th St, Indianapolis, IN 46260. Dr. Shaffer's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dmand AI also links Dr. Shaffer to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Johnathon Patrick Shaffer's office phone number?
The practice phone on file for Dr. Shaffer is (317) 338-2172.
What is Dr. Johnathon Patrick Shaffer's medical license number?
Dr. Shaffer holds Indiana license 01085483A, one of the licenses on file in 2 states.
Which states has Dr. Johnathon Patrick Shaffer been licensed in?
Dmand AI has state licenses on file for Dr. Shaffer in Indiana and California.
Which hospitals is Dr. Johnathon Patrick Shaffer affiliated with?
Dr. Shaffer is affiliated with IU Health Methodist Hospital. Dmand AI links Dr. Shaffer to 1 more hospital.
What medical group is Dr. Johnathon Patrick Shaffer part of?
Dr. Shaffer is linked to IU Health Medical Group. Dmand AI links Dr. Shaffer to 1 more medical group.
Does Dr. Johnathon Patrick Shaffer accept Medicare?
Yes. CMS data shows Dr. Shaffer billed Medicare for 280 services in 2024, and Dr. Shaffer accepts Medicare assignment.
Does Dr. Johnathon Patrick Shaffer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shaffer as offering telehealth services.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Johnathon Patrick Shaffer see?
CMS counts 136 Medicare patients who saw Dr. Shaffer in 2024, with an average age of 71.
What services does Dr. Johnathon Patrick Shaffer bill to Medicare?
In 2024, Dr. Shaffer's most billed Medicare services were office visit, established patient (99215), office visit, new patient (99205) and office visit, established patient (99214).
What drugs does Dr. Johnathon Patrick Shaffer prescribe most?
In 2024 Medicare Part D data, Dr. Shaffer's most prescribed drugs by claims were Tizanidine HCl, Gabapentin and Hydrocodone-Acetaminophen.
Has Dr. Johnathon Patrick Shaffer received payments from drug or device companies?
CMS Open Payments shows $909 in general payments to Dr. Shaffer from 6 companies from 2021 to 2025. The largest total came from SPR Therapeutics, Inc.
How long has Dr. Johnathon Patrick Shaffer been practicing?
Dr. Shaffer graduated from medical school in 2015, 11 years ago.
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