Dr. Paul Robert Buttars, DO
- Medicare services, 2024
- 1,382
- Medicare patients, 2024
- 335
- MIPS score, 2024
- 95
- Hospital affiliations
- 3
- Industry payments
- $18
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Buttars' professional email, personal email and mobile number
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Dr. Paul Robert Buttars is a pathologist in Saint Louis, Missouri
Dr. Buttars practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Buttars' NPI, 1881061901, was assigned on August 24, 2015. Dr. Buttars graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2015. Dr. Buttars holds Illinois license 036164890.
- NPI
- 1881061901NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698196178
- NPI enumeration date
- August 24, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Paul Robert Buttars practices at 2 locations in Saint Louis, Missouri
Dr. Buttars' primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Buttars also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Paul Robert Buttars is affiliated with 3 sites of care and 1 medical group
Dr. Buttars' primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dr. Buttars is also affiliated with Barnes-Jewish West County Hospital. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Buttars to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Paul Robert Buttars' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Buttars practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Paul Robert Buttars is one of 212 pathologists in Missouri
Anatomic pathology and clinical pathology is Dr. Buttars' primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dmand AI has Dr. Buttars' licenses on file in 2 states: Illinois and Iowa.
Specialties and state licenses
- Anatomic pathology and clinical pathology, IllinoisPrimary
- Iowa license
Pathologists near Dr. Buttars
Counts of pathologists 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. Paul Robert Buttars billed Medicare for 1,382 services in 2024
CMS data shows 1,382 Medicare services from Dr. Buttars across 14 procedure codes in 2024, for 335 Medicare patients. Medicare paid $47,399 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Buttars' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1,6562024: 1,38217%
- Other services
- 2023: 162024: 0100%
Dr. Buttars compared with the Missouri median for pathologists, 2024
- Dr. Buttars
- Missouri median
- Medicare services
- 1,382vs 1,446Close to median
- Medicare patients
- 335vs 52636% below
Medians across 216 pathologists in Missouri with Dmand AI profiles that report each measure.
Dr. Buttars' 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. Paul Robert Buttars treated 335 Medicare patients in 2024, average age 72
CMS counts 335 Medicare patients who saw Dr. Buttars in 2024. The largest group is 65 to 74, with 159 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.66, 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. Buttars' median patient age at 58, with 88% women.
Dr. Buttars' Medicare patients by age, 2024
Dr. Buttars' Medicare patients by sex, 2024
- Women20260%
- Men13340%
Chronic conditions among Dr. Buttars' Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis45%
- Cancer43%
- Ischemic heart disease34%
- Mood disorders29%
- Diabetes28%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Buttars' 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
- Women88%
- Men10%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Paul Robert Buttars scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Buttars for performance year 2024, reported through an alternative payment model (APM). Dr. Buttars accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Buttars' MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Paul Robert Buttars received $18 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Buttars from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Roche Diagnostics Corporation paid the most, $18.
Companies that paid Dr. Buttars the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Paul Robert Buttars graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Dr. Buttars graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Paul Robert Buttars'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 DataDmand AI Practice 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) |
| 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) |
| 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. Paul Robert Buttars
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. Paul Robert Buttars' NPI number?
Dr. Paul Robert Buttars' NPI number is 1881061901. It was assigned on August 24, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Paul Robert Buttars?
Dr. Paul Robert Buttars is a pathologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Paul Robert Buttars practice?
Dr. Buttars practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Buttars also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Buttars' primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Buttars to 1 hospital.
What is Dr. Paul Robert Buttars' office phone number?
The practice phone on file for Dr. Buttars is (314) 747-3000.
What is Dr. Paul Robert Buttars' medical license number?
Dr. Buttars holds Illinois license 036164890, one of the licenses on file in 2 states.
Which states has Dr. Paul Robert Buttars been licensed in?
Dmand AI has state licenses on file for Dr. Buttars in Illinois and Iowa.
Which hospitals is Dr. Paul Robert Buttars affiliated with?
Dr. Buttars practices at Barnes-Jewish Hospital in Saint Louis, Missouri. Dr. Buttars is also affiliated with Barnes-Jewish West County Hospital. Dmand AI links Dr. Buttars to 1 more hospital.
What medical group is Dr. Paul Robert Buttars part of?
Dr. Buttars is linked to WashU Medicine Psychiatry.
Does Dr. Paul Robert Buttars accept Medicare?
Yes. CMS data shows Dr. Buttars billed Medicare for 1,382 services in 2024, and Dr. Buttars accepts Medicare assignment.
What is Dr. Paul Robert Buttars' MIPS score?
Dr. Buttars' MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Paul Robert Buttars see?
CMS counts 335 Medicare patients who saw Dr. Buttars in 2024, with an average age of 72.
What services does Dr. Paul Robert Buttars bill to Medicare?
In 2024, Dr. Buttars' most billed Medicare services were lab and pathology test (88305), lab and pathology test (88307) and lab and pathology test (88341).
Where did Dr. Paul Robert Buttars go to medical school?
Dr. Buttars graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2015.
Has Dr. Paul Robert Buttars received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Buttars from 1 company from 2025 to 2025. The largest total came from Roche Diagnostics Corporation.
How long has Dr. Paul Robert Buttars been practicing?
Dr. Buttars graduated from medical school in 2015, 11 years ago.
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