Dr. Jonathan Gregory Tlachac, MD
- Medicare services, 2024
- 21
- Medicare patients, 2024
- 108
- Publications
- 1
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 975 Port Washington Road, Grafton, WI 53024
- Practice phone
- Call (262) 329-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tlachac's professional email, personal email and mobile number
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Dr. Jonathan Gregory Tlachac is an anesthesiologist in Grafton, Wisconsin
Dr. Tlachac practices at Aurora Medical Center - Grafton in Grafton, Wisconsin, part of Advocate Health.
Dr. Tlachac's NPI, 1629204078, was assigned on May 29, 2009. Dr. Tlachac graduated from University of Utah School of Medicine in 2005. Dr. Tlachac holds Wisconsin license 54241.
- NPI
- 1629204078NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163575671
- NPI enumeration date
- May 29, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 329-1000
- 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. Jonathan Gregory Tlachac practices at Aurora Medical Center - Grafton in Grafton, Wisconsin
Dr. Tlachac's primary practice is Aurora Medical Center - Grafton, at 975 Port Washington Road, Grafton, WI 53024 in Ozaukee County. The practice phone is (262) 329-1000.
- Aurora Medical Center - Grafton975 Port Washington Road, Grafton, WI 53024 · Ozaukee CountyPhone(262) 329-1000
Source: Dmand AI Affiliation Data
Dr. Jonathan Gregory Tlachac is affiliated with 2 sites of care and 2 medical groups
Dr. Tlachac's primary practice is Aurora Medical Center - Grafton in Grafton, Wisconsin, part of Advocate Health. The medical group on file is Aurora Medical Group. Dmand AI also links Dr. Tlachac to 1 more hospital outpatient department and 1 medical group, 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. Jonathan Gregory Tlachac's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tlachac practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora Medical Center - Grafton | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan Gregory Tlachac is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Tlachac's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Tlachac's licenses on file in 2 states: Wisconsin and Pennsylvania.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
- Pennsylvania license
Anesthesiologists near Dr. Tlachac
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. Jonathan Gregory Tlachac billed Medicare for 21 services in 2024
CMS data shows 21 Medicare services from Dr. Tlachac across 1 procedure code in 2024, for 108 Medicare patients. Medicare paid $1,153 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Tlachac's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 342024: 2138%
- Surgery
- 2023: 112024: 0100%
Dr. Tlachac compared with the Wisconsin median for anesthesiologists, 2024
- Dr. Tlachac
- Wisconsin median
- Medicare services
- 21vs 4856% below
- Medicare patients
- 108vs 1199% below
Medians across 995 anesthesiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Tlachac'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. Tlachac and other anesthesiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Gregory Tlachac treated 108 Medicare patients in 2024, average age 74
CMS counts 108 Medicare patients who saw Dr. Tlachac in 2024. The largest group is 65 to 74, with 54 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.59, 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. Tlachac's median patient age at 68, with 56% women.
Dr. Tlachac's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tlachac's Medicare patients by sex, 2024
- Women5248%
- Men5652%
Chronic conditions among Dr. Tlachac's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease37%
- Chronic kidney disease36%
- Anxiety27%
- Mood disorders27%
- Depression26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tlachac's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Jonathan Gregory Tlachac takes part in Medicare
Dr. Tlachac 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. Jonathan Gregory Tlachac has 1 publication on record
Dmand AI links 1 paper to Dr. Tlachac. Dr. Tlachac's most frequent co-authors are Michael L. Guralnick, MD and Kenneth Mitchell Jacobsohn, MD.
Dr. Tlachac's most frequent co-authors
Recent publications by Dr. Tlachac
See who Dr. Tlachac researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tlachac works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jonathan Gregory Tlachac graduated from University of Utah School of Medicine
Dr. Tlachac graduated from University of Utah School of Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan Gregory Tlachac'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Jonathan Gregory Tlachac
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. Jonathan Gregory Tlachac's NPI number?
Dr. Jonathan Gregory Tlachac's NPI number is 1629204078. It was assigned on May 29, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Gregory Tlachac?
Dr. Jonathan Gregory Tlachac is an anesthesiologist in Grafton, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Jonathan Gregory Tlachac practice?
Dr. Tlachac practices at 975 Port Washington Road, Grafton, WI 53024. Dr. Tlachac's primary practice is Aurora Medical Center - Grafton in Grafton, Wisconsin, part of Advocate Health. Dmand AI also links Dr. Tlachac to 1 hospital outpatient department and 1 medical group.
What is Dr. Jonathan Gregory Tlachac's office phone number?
The practice phone on file for Dr. Tlachac is (262) 329-1000.
What is Dr. Jonathan Gregory Tlachac's medical license number?
Dr. Tlachac holds Wisconsin license 54241, one of the licenses on file in 2 states.
Which states has Dr. Jonathan Gregory Tlachac been licensed in?
Dmand AI has state licenses on file for Dr. Tlachac in Wisconsin and Pennsylvania.
Which hospitals is Dr. Jonathan Gregory Tlachac affiliated with?
Dr. Tlachac practices at Aurora Medical Center - Grafton in Grafton, Wisconsin.
What medical group is Dr. Jonathan Gregory Tlachac part of?
Dr. Tlachac is linked to Aurora Medical Group. Dmand AI links Dr. Tlachac to 1 more medical group.
Does Dr. Jonathan Gregory Tlachac accept Medicare?
Yes. CMS data shows Dr. Tlachac billed Medicare for 21 services in 2024, and Dr. Tlachac accepts Medicare assignment.
How many Medicare patients does Dr. Jonathan Gregory Tlachac see?
CMS counts 108 Medicare patients who saw Dr. Tlachac in 2024, with an average age of 74.
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What services does Dr. Jonathan Gregory Tlachac bill to Medicare?
In 2024, Dr. Tlachac's most billed Medicare services were anesthesia (00811).
Where did Dr. Jonathan Gregory Tlachac go to medical school?
Dr. Tlachac graduated from University of Utah School of Medicine in 2005.
How long has Dr. Jonathan Gregory Tlachac been practicing?
Dr. Tlachac graduated from medical school in 2005, 21 years ago.
Does Dr. Jonathan Gregory Tlachac do research?
Dmand AI links 1 publication to Dr. Tlachac.
Who does Dr. Jonathan Gregory Tlachac publish with?
Dr. Tlachac's most frequent co-authors are Michael L. Guralnick, MD (1 shared paper) and Kenneth Mitchell Jacobsohn, MD (1 shared paper).
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