Dr. Jacob Nathaniel Mattox, MD
- Medicare services, 2024
- 273
- Medicare patients, 2024
- 265
- Part D claims, 2024
- 142
- Hospital affiliations
- 3
- Medical groups
- 3
- Practice address
- 3500 Franciscan Way, Michigan City, IN 46360
- Practice phone
- Call (219) 879-8511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mattox's professional email, personal email and mobile number
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Dr. Jacob Nathaniel Mattox is an emergency medicine physician in Michigan City, Indiana
Dr. Mattox practices at Franciscan Health Michigan City in Michigan City, Indiana, part of Franciscan Alliance.
Dr. Mattox's NPI, 1922636893, was assigned on March 27, 2020. Dr. Mattox graduated from University of Southern California Keck School of Medicine in 2020. Dr. Mattox holds Illinois license 125.075832.
- NPI
- 1922636893NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991175994
- NPI enumeration date
- March 27, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (219) 879-8511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jacob Nathaniel Mattox practices at Franciscan Health Michigan City in Michigan City, Indiana
Dr. Mattox's primary practice is Franciscan Health Michigan City, at 3500 Franciscan Way, Michigan City, IN 46360 in La Porte County. The practice phone is (219) 879-8511.
- Franciscan Health Michigan City3500 Franciscan Way, Michigan City, IN 46360 · La Porte CountyPhone(219) 879-8511
Source: Dmand AI Affiliation Data
Dr. Jacob Nathaniel Mattox is affiliated with 3 sites of care and 3 medical groups
Dr. Mattox's primary practice is Franciscan Health Michigan City in Michigan City, Indiana, part of Franciscan Alliance. Dr. Mattox is also affiliated with Advocate Christ Medical Center. The medical group on file is SCP Health. Dmand AI also links Dr. Mattox to 1 more hospital and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jacob Nathaniel Mattox's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mattox practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Franciscan Health Michigan City | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jacob Nathaniel Mattox is one of 1,275 emergency medicine physicians in Indiana
Emergency medicine is Dr. Mattox's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Mattox is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Mattox
Counts of emergency medicine physicians 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. Jacob Nathaniel Mattox billed Medicare for 273 services in 2024
CMS data shows 273 Medicare services from Dr. Mattox across 4 procedure codes in 2024, for 265 Medicare patients. Medicare paid $30,836 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mattox's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1192024: 273129%
Dr. Mattox compared with the Indiana median for emergency medicine physicians, 2024
- Dr. Mattox
- Indiana median
- Medicare services
- 273vs 30410% below
- Medicare patients
- 265vs 277Close to median
- Part D claims
- 78vs 9215% below
Medians across 1,276 emergency medicine physicians in Indiana with Dmand AI profiles that report each measure.
Dr. Mattox'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jacob Nathaniel Mattox treated 265 Medicare patients in 2024, average age 72
CMS counts 265 Medicare patients who saw Dr. Mattox in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.95, 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. Mattox's median patient age at 59, with 56% women.
Dr. Mattox's Medicare patients by age, 2024
Dr. Mattox's Medicare patients by sex, 2024
- Women14454%
- Men12146%
Chronic conditions among Dr. Mattox's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes45%
- Anxiety40%
- Mood disorders40%
- Chronic kidney disease38%
- Ischemic heart disease38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mattox's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jacob Nathaniel Mattox wrote 142 Medicare Part D claims in 2024
In 2024, Dr. Mattox wrote 142 Medicare Part D claims for 106 patients. 90% of them were for generic drugs. CMS names the drug for 78 of them, across 5 drugs with 11 or more claims each, at $413 in total drug cost. In 2023, CMS named 39 claims across 2 drugs.
Dr. Mattox's Part D claims by kind of drug, 2024
- Generic128 claims90%
- Brand-name14 claims10%
Dr. Mattox'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. Mattox's Part D claims, 2024
- Opioids9%13 of 142 claims
- Antibiotics51%73 of 142 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: 392024: 78100%
Drugs named by CMS: 5 in 2024, 2 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. Jacob Nathaniel Mattox takes part in Medicare
Dr. Mattox 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)
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Dr. Jacob Nathaniel Mattox graduated from University of Southern California Keck School of Medicine
Dr. Mattox graduated from University of Southern California Keck School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jacob Nathaniel Mattox'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 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) |
| 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. Jacob Nathaniel Mattox
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. Jacob Nathaniel Mattox's NPI number?
Dr. Jacob Nathaniel Mattox's NPI number is 1922636893. It was assigned on March 27, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Jacob Nathaniel Mattox?
Dr. Jacob Nathaniel Mattox is an emergency medicine physician in Michigan City, Indiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jacob Nathaniel Mattox practice?
Dr. Mattox practices at 3500 Franciscan Way, Michigan City, IN 46360. Dr. Mattox's primary practice is Franciscan Health Michigan City in Michigan City, Indiana, part of Franciscan Alliance. Dmand AI also links Dr. Mattox to 1 hospital and 2 medical groups.
What is Dr. Jacob Nathaniel Mattox's office phone number?
The practice phone on file for Dr. Mattox is (219) 879-8511.
What is Dr. Jacob Nathaniel Mattox's medical license number?
Dr. Mattox holds Illinois license 125.075832.
Which hospitals is Dr. Jacob Nathaniel Mattox affiliated with?
Dr. Mattox practices at Franciscan Health Michigan City in Michigan City, Indiana. Dr. Mattox is also affiliated with Advocate Christ Medical Center. Dmand AI links Dr. Mattox to 1 more hospital.
What medical group is Dr. Jacob Nathaniel Mattox part of?
Dr. Mattox is linked to SCP Health. Dmand AI links Dr. Mattox to 2 more medical groups.
Does Dr. Jacob Nathaniel Mattox accept Medicare?
Yes. CMS data shows Dr. Mattox billed Medicare for 273 services in 2024, and Dr. Mattox accepts Medicare assignment.
How many Medicare patients does Dr. Jacob Nathaniel Mattox see?
CMS counts 265 Medicare patients who saw Dr. Mattox in 2024, with an average age of 72.
What services does Dr. Jacob Nathaniel Mattox bill to Medicare?
In 2024, Dr. Mattox's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
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Where did Dr. Jacob Nathaniel Mattox go to medical school?
Dr. Mattox graduated from University of Southern California Keck School of Medicine in 2020.
What drugs does Dr. Jacob Nathaniel Mattox prescribe most?
In 2024 Medicare Part D data, Dr. Mattox's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Doxycycline Monohydrate.
How long has Dr. Jacob Nathaniel Mattox been practicing?
Dr. Mattox graduated from medical school in 2020, 6 years ago.
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