Dr. Rex K. Crumpacker, MD
- Medicare services, 2024
- 46
- Medicare patients, 2024
- 137
- MIPS score, 2024
- 81
- Hospital affiliations
- 1
- Industry payments
- $39
- Practice address
- 811 W 34th Street, Joplin, MO 64804
- Practice phone
- Call (417) 622-4262
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Freeman Surgical Center
Surgery Center - Medicare-Certified · Joplin, Missouri
Find Dr. Crumpacker's professional email, personal email and mobile number
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Dr. Rex K. Crumpacker is an anesthesiologist in Joplin, Missouri
Dr. Crumpacker practices at Freeman Surgical Center in Joplin, Missouri.
Dr. Crumpacker's NPI, 1598704967, was assigned on June 4, 2006. Dr. Crumpacker graduated from University of Kansas School of Med (KC/Wich/Sal) in 1990. Dr. Crumpacker holds Missouri license 107820.
- NPI
- 1598704967NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284722026
- NPI enumeration date
- June 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (417) 622-4262
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rex K. Crumpacker practices at Freeman Surgical Center in Joplin, Missouri
Dr. Crumpacker's primary practice is Freeman Surgical Center, at 811 W 34th Street, Joplin, MO 64804. The practice phone is (417) 622-4262.
- Freeman Surgical Center811 W 34th Street, Joplin, MO 64804Phone(417) 622-4262
Source: Dmand AI Affiliation Data
Dr. Rex K. Crumpacker is affiliated with 2 sites of care and 1 medical group
Dr. Crumpacker's primary practice is Freeman Surgical Center in Joplin, Missouri. Dr. Crumpacker is also affiliated with Freeman Hospital West. The medical group on file is Freeman Health System.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rex K. Crumpacker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Crumpacker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Freeman Surgical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rex K. Crumpacker is one of 819 anesthesiologists in Missouri
Anesthesiology is Dr. Crumpacker's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Crumpacker is licensed in Missouri.
Specialties and state licenses
- Anesthesiology, MissouriPrimary
Anesthesiologists near Dr. Crumpacker
Counts of anesthesiologists 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. Rex K. Crumpacker billed Medicare for 46 services in 2024
CMS data shows 46 Medicare services from Dr. Crumpacker across 2 procedure codes in 2024, for 137 Medicare patients. Medicare paid $3,270 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Crumpacker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 302024: 4653%
Dr. Crumpacker compared with the Missouri median for anesthesiologists, 2024
- Dr. Crumpacker
- Missouri median
- Medicare services
- 46vs 7539% below
- Medicare patients
- 137vs 140Close to median
Medians across 839 anesthesiologists in Missouri with Dmand AI profiles that report each measure.
Dr. Crumpacker'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. Crumpacker and other anesthesiologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rex K. Crumpacker treated 137 Medicare patients in 2024, average age 74
CMS counts 137 Medicare patients who saw Dr. Crumpacker in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have arthritis, and 75% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Crumpacker's median patient age at 69, with 54% women.
Dr. Crumpacker's Medicare patients by age, 2024
Dr. Crumpacker's Medicare patients by sex, 2024
- Women8159%
- Men5641%
Chronic conditions among Dr. Crumpacker's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes33%
- Mood disorders30%
- Anxiety29%
- Chronic kidney disease28%
- Depression27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Crumpacker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rex K. Crumpacker scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Crumpacker for performance year 2024, reported as part of a group. Dr. Crumpacker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Crumpacker's MIPS scores, performance year 2024
- 81of 100Final score
- 60.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
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. Rex K. Crumpacker received $39 in industry payments from 2023 to 2024
CMS Open Payments shows 2 general payments to Dr. Crumpacker from 1 drug or device company from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Pacira Pharmaceuticals Incorporated paid the most, $39.
General payments to Dr. Crumpacker by program year, 2023 to 2024
Companies that paid Dr. Crumpacker the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rex K. Crumpacker graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Crumpacker graduated from University of Kansas School of Med (KC/Wich/Sal) in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rex K. Crumpacker'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) |
| 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. Rex K. Crumpacker
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. Rex K. Crumpacker's NPI number?
Dr. Rex K. Crumpacker's NPI number is 1598704967. It was assigned on June 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rex K. Crumpacker?
Dr. Rex K. Crumpacker is an anesthesiologist in Joplin, Missouri. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Rex K. Crumpacker practice?
Dr. Crumpacker practices at 811 W 34th Street, Joplin, MO 64804. Dr. Crumpacker's primary practice is Freeman Surgical Center in Joplin, Missouri.
What is Dr. Rex K. Crumpacker's office phone number?
The practice phone on file for Dr. Crumpacker is (417) 622-4262.
What is Dr. Rex K. Crumpacker's medical license number?
Dr. Crumpacker holds Missouri license 107820.
Which hospitals is Dr. Rex K. Crumpacker affiliated with?
Dr. Crumpacker is affiliated with Freeman Hospital West.
What medical group is Dr. Rex K. Crumpacker part of?
Dr. Crumpacker is linked to Freeman Health System.
Does Dr. Rex K. Crumpacker accept Medicare?
Yes. CMS data shows Dr. Crumpacker billed Medicare for 46 services in 2024, and Dr. Crumpacker accepts Medicare assignment.
What is Dr. Rex K. Crumpacker's MIPS score?
Dr. Crumpacker's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Rex K. Crumpacker see?
CMS counts 137 Medicare patients who saw Dr. Crumpacker in 2024, with an average age of 74.
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What services does Dr. Rex K. Crumpacker bill to Medicare?
In 2024, Dr. Crumpacker's most billed Medicare services were surgery: brain, spine and nerves (64640) and surgery: brain, spine and nerves (64415).
Where did Dr. Rex K. Crumpacker go to medical school?
Dr. Crumpacker graduated from University of Kansas School of Med (KC/Wich/Sal) in 1990.
Has Dr. Rex K. Crumpacker received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Dr. Crumpacker from 1 company from 2023 to 2024. The largest total came from Pacira Pharmaceuticals Incorporated.
How long has Dr. Rex K. Crumpacker been practicing?
Dr. Crumpacker graduated from medical school in 1990, 36 years ago.
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