Dr. Stephen James Mularz, DO
- Medicare services, 2024
- 520
- Medicare patients, 2024
- 289
- Part D claims, 2024
- 716
- MIPS score, 2024
- 82
- Hospital affiliations
- 3
- Practice address
- 100 Medical Center Drive, Hazard, KY 41701
- Practice phone
- Call (606) 439-1331
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mularz's professional email, personal email and mobile number
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Dr. Stephen James Mularz is a gastroenterologist in Hazard, Kentucky
Dr. Mularz practices at Hazard ARH Regional Medical Center in Hazard, Kentucky, part of ARH.
Dr. Mularz's NPI, 1982018156, was assigned on June 16, 2014. Dr. Mularz graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med in 2014. Dr. Mularz holds Kentucky license E000.
- NPI
- 1982018156NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800208992
- NPI enumeration date
- June 16, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (606) 439-1331
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen James Mularz practices at Hazard ARH Regional Medical Center in Hazard, Kentucky
Dr. Mularz's primary practice is Hazard ARH Regional Medical Center, at 100 Medical Center Drive, Hazard, KY 41701 in Perry County. The practice phone is (606) 439-1331.
- Hazard ARH Regional Medical Center100 Medical Center Drive, Hazard, KY 41701 · Perry CountyPhone(606) 439-1331
Source: Dmand AI Affiliation Data
Dr. Stephen James Mularz is affiliated with 4 sites of care and 1 medical group
Dr. Mularz's primary practice is Hazard ARH Regional Medical Center in Hazard, Kentucky, part of ARH. Dr. Mularz is also affiliated with Harlan ARH Hospital. The medical group on file is ARH Pennington Gap Clinic. Dmand AI also links Dr. Mularz to 1 more hospital and 1 group practice or clinic, 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. Stephen James Mularz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mularz practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hazard ARH Regional Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen James Mularz is one of 205 gastroenterologists in Kentucky
Gastroenterology is Dr. Mularz's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mularz is licensed in Kentucky.
Specialties and state licenses
- Gastroenterology, KentuckyPrimary
Gastroenterologists near Dr. Mularz
Counts of gastroenterologists 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. Stephen James Mularz billed Medicare for 520 services in 2024
CMS data shows 520 Medicare services from Dr. Mularz across 14 procedure codes in 2024, for 289 Medicare patients. Medicare paid $42,898 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mularz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4072024: 3787%
- Office and hospital visits
- 2023: 1522024: 12915%
- Tests and treatments
- 2023: 02024: 13
- Other services
- 2023: 132024: 0100%
Dr. Mularz compared with the Kentucky median for gastroenterologists, 2024
- Dr. Mularz
- Kentucky median
- Medicare services
- 520vs 520Close to median
- Medicare patients
- 289vs 3189% below
- Part D claims
- 580vs 39646% above
Medians across 210 gastroenterologists in Kentucky with Dmand AI profiles that report each measure.
Dr. Mularz'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mularz and other gastroenterologists in Kentucky.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen James Mularz treated 289 Medicare patients in 2024, average age 69
CMS counts 289 Medicare patients who saw Dr. Mularz in 2024. The largest group is 65 to 74, with 132 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 1.86, 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. Mularz's median patient age at 59, with 55% women.
Dr. Mularz's Medicare patients by age, 2024
Dr. Mularz's Medicare patients by sex, 2024
- Women14349%
- Men14651%
Chronic conditions among Dr. Mularz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Anxiety46%
- Diabetes45%
- COPD44%
- Ischemic heart disease41%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mularz'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
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen James Mularz wrote 716 Medicare Part D claims in 2024
In 2024, Dr. Mularz wrote 716 Medicare Part D claims for 234 patients. 85% of them were for generic drugs. CMS names the drug for 580 of them, across 12 drugs with 11 or more claims each, at $18,104 in total drug cost. In 2023, CMS named 429 claims across 6 drugs.
Dr. Mularz's Part D claims by kind of drug, 2024
- Generic612 claims85%
- Brand-name and other104 claims15%
Dr. Mularz'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. Mularz's Part D claims, 2024
- Antibiotics10%69 of 716 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: 4292024: 58035%
Drugs named by CMS: 12 in 2024, 6 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. Stephen James Mularz scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Mularz for performance year 2024, reported through an alternative payment model (APM). Dr. Mularz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 222 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Mularz, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Mularz's MIPS scores, performance year 2024
- 82of 100Final score
- 47.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mularz ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 92nd percentile222 procedures
- Colonoscopy
- 82nd percentile113 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen James Mularz received $4,539 in industry payments from 2020 to 2025
CMS Open Payments shows 200 general payments to Dr. Mularz from 26 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 97% of the total. Abbvie Inc. paid the most, $1,266.
General payments to Dr. Mularz by program year, 2020 to 2025
General payments to Dr. Mularz by kind, 2020 to 2025
- Food and beverage$4,41497%
- Education$1253%
Companies that paid Dr. Mularz the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen James Mularz graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med
Dr. Mularz graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen James Mularz'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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. Stephen James Mularz
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. Stephen James Mularz's NPI number?
Dr. Stephen James Mularz's NPI number is 1982018156. It was assigned on June 16, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen James Mularz?
Dr. Stephen James Mularz is a gastroenterologist in Hazard, Kentucky. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Stephen James Mularz practice?
Dr. Mularz practices at 100 Medical Center Drive, Hazard, KY 41701. Dr. Mularz's primary practice is Hazard ARH Regional Medical Center in Hazard, Kentucky, part of ARH. Dmand AI also links Dr. Mularz to 1 hospital and 1 group practice or clinic.
What is Dr. Stephen James Mularz's office phone number?
The practice phone on file for Dr. Mularz is (606) 439-1331.
What is Dr. Stephen James Mularz's medical license number?
Dr. Mularz holds Kentucky license E000.
Which hospitals is Dr. Stephen James Mularz affiliated with?
Dr. Mularz practices at Hazard ARH Regional Medical Center in Hazard, Kentucky. Dr. Mularz is also affiliated with Harlan ARH Hospital. Dmand AI links Dr. Mularz to 1 more hospital.
What medical group is Dr. Stephen James Mularz part of?
Dr. Mularz is linked to ARH Pennington Gap Clinic.
Does Dr. Stephen James Mularz accept Medicare?
Yes. CMS data shows Dr. Mularz billed Medicare for 520 services in 2024, and Dr. Mularz accepts Medicare assignment.
What is Dr. Stephen James Mularz's MIPS score?
Dr. Mularz's MIPS final score for performance year 2024 is 82 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Stephen James Mularz see?
CMS counts 289 Medicare patients who saw Dr. Mularz in 2024, with an average age of 69.
Show 5 more questionsShow fewer questions
What services does Dr. Stephen James Mularz bill to Medicare?
In 2024, Dr. Mularz's most billed Medicare services were surgery: digestive system (43239), hospital inpatient care (99221) and surgery: digestive system (45380).
Where did Dr. Stephen James Mularz go to medical school?
Dr. Mularz graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med in 2014.
What drugs does Dr. Stephen James Mularz prescribe most?
In 2024 Medicare Part D data, Dr. Mularz's most prescribed drugs by claims were Colestipol HCl, Famotidine and Sucralfate.
Has Dr. Stephen James Mularz received payments from drug or device companies?
CMS Open Payments shows $4,539 in general payments to Dr. Mularz from 26 companies from 2020 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Stephen James Mularz been practicing?
Dr. Mularz graduated from medical school in 2014, 12 years ago.
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