Dr. John Thomas Stimmler, DO
- Medicare services, 2024
- 92
- Medicare patients, 2024
- 188
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Industry payments
- $268
- Practice address
- 4700 Castleton Wy Ste 101, Castle Rock, CO 80109
- Practice phone
- Call (720) 519-1418
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Castle Rock SurgiCenter
Surgery Center - Medicare-Certified · Castle Rock, Colorado
Find Dr. Stimmler's professional email, personal email and mobile number
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Dr. John Thomas Stimmler is an anesthesiologist in Castle Rock, Colorado
Dr. Stimmler practices at Castle Rock SurgiCenter in Castle Rock, Colorado.
Dr. Stimmler's NPI, 1336227255, was assigned on November 1, 2006. Dr. Stimmler graduated from Lake Erie College of Osteopathic Medicine, Erie in 2005. Dr. Stimmler holds Colorado license DR0052046.
- NPI
- 1336227255NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587808779
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (720) 519-1418
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Thomas Stimmler practices at Castle Rock SurgiCenter in Castle Rock, Colorado
Dr. Stimmler's primary practice is Castle Rock SurgiCenter, at 4700 Castleton Wy Ste 101, Castle Rock, CO 80109. The practice phone is (720) 519-1418.
- Castle Rock SurgiCenter4700 Castleton Wy Ste 101, Castle Rock, CO 80109Phone(720) 519-1418
Source: Dmand AI Affiliation Data
Dr. John Thomas Stimmler is affiliated with 4 sites of care and 1 medical group
Dr. Stimmler's primary practice is Castle Rock SurgiCenter in Castle Rock, Colorado. Dr. Stimmler is also affiliated with CommonSpirit - Penrose Hospital. The medical group on file is U.S. Anesthesia Partners. Dmand AI also links Dr. Stimmler 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. John Thomas Stimmler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stimmler practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Castle Rock SurgiCenter | 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. John Thomas Stimmler is one of 1,032 anesthesiologists in Colorado
Anesthesiology is Dr. Stimmler's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Stimmler's licenses on file in 2 states: Colorado and Virginia.
Specialties and state licenses
- Anesthesiology, ColoradoPrimary
- Virginia license
Anesthesiologists near Dr. Stimmler
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. John Thomas Stimmler billed Medicare for 92 services in 2024
CMS data shows 92 Medicare services from Dr. Stimmler across 7 procedure codes in 2024, for 188 Medicare patients. Medicare paid $11,185 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stimmler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 862024: 5240%
- Surgery
- 2023: 02024: 27
- Imaging
- 2023: 02024: 13
Dr. Stimmler compared with the Colorado median for anesthesiologists, 2024
- Dr. Stimmler
- Colorado median
- Medicare services
- 92vs 5374% above
- Medicare patients
- 188vs 12649% above
Medians across 977 anesthesiologists in Colorado with Dmand AI profiles that report each measure.
Dr. Stimmler'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. Stimmler and other anesthesiologists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Thomas Stimmler treated 188 Medicare patients in 2024, average age 73
CMS counts 188 Medicare patients who saw Dr. Stimmler in 2024. The largest group is 65 to 74, with 95 patients. 68% of them have high blood pressure, and 66% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stimmler's median patient age at 62, with 52% women.
Dr. Stimmler's Medicare patients by age, 2024
Dr. Stimmler's Medicare patients by sex, 2024
- Women10656%
- Men8244%
Chronic conditions among Dr. Stimmler's Medicare patients, 2024
- High blood pressure68%
- High cholesterol66%
- Arthritis62%
- Diabetes27%
- Ischemic heart disease25%
- Mood disorders24%
- Anxiety21%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stimmler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women52%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Thomas Stimmler scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Stimmler for performance year 2024, reported as part of a group. Dr. Stimmler accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Stimmler's MIPS scores, performance year 2024
- 85of 100Final score
- 85of 100Quality
- 40of 100Improvement Activities
- 77of 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. John Thomas Stimmler received $268 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to Dr. Stimmler from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Halyard Health, Inc. paid the most, $78.
General payments to Dr. Stimmler by program year, 2017 to 2025
Companies that paid Dr. Stimmler the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Thomas Stimmler graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Stimmler graduated from Lake Erie College of Osteopathic Medicine, Erie in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Thomas Stimmler'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. John Thomas Stimmler
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. John Thomas Stimmler's NPI number?
Dr. John Thomas Stimmler's NPI number is 1336227255. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Thomas Stimmler?
Dr. John Thomas Stimmler is an anesthesiologist in Castle Rock, Colorado. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John Thomas Stimmler practice?
Dr. Stimmler practices at 4700 Castleton Wy Ste 101, Castle Rock, CO 80109. Dr. Stimmler's primary practice is Castle Rock SurgiCenter in Castle Rock, Colorado. Dmand AI also links Dr. Stimmler to 1 hospital and 1 group practice or clinic.
What is Dr. John Thomas Stimmler's office phone number?
The practice phone on file for Dr. Stimmler is (720) 519-1418.
What is Dr. John Thomas Stimmler's medical license number?
Dr. Stimmler holds Colorado license DR0052046, one of the licenses on file in 2 states.
Which states has Dr. John Thomas Stimmler been licensed in?
Dmand AI has state licenses on file for Dr. Stimmler in Colorado and Virginia.
Which hospitals is Dr. John Thomas Stimmler affiliated with?
Dr. Stimmler is affiliated with CommonSpirit - Penrose Hospital. Dmand AI links Dr. Stimmler to 1 more hospital.
What medical group is Dr. John Thomas Stimmler part of?
Dr. Stimmler is linked to U.S. Anesthesia Partners.
Does Dr. John Thomas Stimmler accept Medicare?
Yes. CMS data shows Dr. Stimmler billed Medicare for 92 services in 2024, and Dr. Stimmler accepts Medicare assignment.
What is Dr. John Thomas Stimmler's MIPS score?
Dr. Stimmler's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
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How many Medicare patients does Dr. John Thomas Stimmler see?
CMS counts 188 Medicare patients who saw Dr. Stimmler in 2024, with an average age of 73.
What services does Dr. John Thomas Stimmler bill to Medicare?
In 2024, Dr. Stimmler's most billed Medicare services were anesthesia (01402), surgery: brain, spine and nerves (64415) and ultrasound (76942).
Where did Dr. John Thomas Stimmler go to medical school?
Dr. Stimmler graduated from Lake Erie College of Osteopathic Medicine, Erie in 2005.
Has Dr. John Thomas Stimmler received payments from drug or device companies?
CMS Open Payments shows $268 in general payments to Dr. Stimmler from 5 companies from 2017 to 2025. The largest total came from Halyard Health, Inc.
How long has Dr. John Thomas Stimmler been practicing?
Dr. Stimmler graduated from medical school in 2005, 21 years ago.
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