Gregory Tonnesen, DC
- Medicare patients, 2024
- 57
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 3718 Grand Ave, Oakland, CA 94610
- Practice phone
- Call (800) 848-3535
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
American Specialty Health Clearinghouse, Inc.
Oakland, California
Find Gregory Tonnesen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gregory Tonnesen is a chiropractor in Oakland, California
Gregory Tonnesen practices at American Specialty Health Clearinghouse, Inc. in Oakland, California.
Gregory Tonnesen's NPI, 1811633100, was assigned on May 9, 2022. Gregory Tonnesen graduated from Life Chiropractic College in 2020. Gregory Tonnesen holds Florida license CH14015.
- NPI
- 1811633100NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193195121
- NPI enumeration date
- May 9, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 848-3535
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory Tonnesen practices at American Specialty Health Clearinghouse, Inc. in Oakland, California
Gregory Tonnesen's primary practice is American Specialty Health Clearinghouse, Inc., at 3718 Grand Ave, Oakland, CA 94610 in Alameda County. The practice phone is (800) 848-3535.
- American Specialty Health Clearinghouse, Inc.3718 Grand Ave, Oakland, CA 94610 · Alameda CountyPhone(800) 848-3535
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gregory Tonnesen is affiliated with 2 sites of care
Gregory Tonnesen's primary practice is American Specialty Health Clearinghouse, Inc. in Oakland, California. Dmand AI also links Gregory Tonnesen to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gregory Tonnesen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Tonnesen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| American Specialty Health Clearinghouse, Inc. | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory Tonnesen is one of 4,365 chiropractors in California
Chiropractor is Gregory Tonnesen's primary specialty in the NPI Registry, under taxonomy code 111N00000X. Gregory Tonnesen is licensed in Florida.
Specialties and state licenses
- Chiropractor, FloridaPrimary
Chiropractors near Gregory Tonnesen
Counts of chiropractors 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
Gregory Tonnesen treated 57 Medicare patients in 2024, average age 70
CMS counts 57 Medicare patients who saw Gregory Tonnesen in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gregory Tonnesen's median patient age at 46, with 54% women.
Gregory Tonnesen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gregory Tonnesen's Medicare patients by sex, 2024
- Women3256%
- Men2544%
Chronic conditions among Gregory Tonnesen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis58%
- Ischemic heart disease37%
- Diabetes33%
- Anxiety26%
- Mood disorders26%
- Atrial fibrillation25%
Share of Medicare patients with each condition. A patient can have several.
Gregory Tonnesen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Gregory Tonnesen takes part in Medicare
Gregory Tonnesen 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)
Gregory Tonnesen graduated from Life Chiropractic College
Gregory Tonnesen graduated from Life Chiropractic College in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Gregory Tonnesen'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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) |
| 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 Gregory Tonnesen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory Tonnesen's NPI number?
Gregory Tonnesen's NPI number is 1811633100. It was assigned on May 9, 2022, and it is active in the NPI Registry.
What does Gregory Tonnesen specialize in?
Gregory Tonnesen is a chiropractor in Oakland, California. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does Gregory Tonnesen practice?
Gregory Tonnesen practices at 3718 Grand Ave, Oakland, CA 94610. Gregory Tonnesen's primary practice is American Specialty Health Clearinghouse, Inc. in Oakland, California. Dmand AI also links Gregory Tonnesen to 1 physician office.
What is Gregory Tonnesen's office phone number?
The practice phone on file for Gregory Tonnesen is (800) 848-3535.
What is Gregory Tonnesen's medical license number?
Gregory Tonnesen holds Florida license CH14015.
Does Gregory Tonnesen accept Medicare?
Yes. CMS lists Gregory Tonnesen as accepting Medicare assignment.
How many Medicare patients does Gregory Tonnesen see?
CMS counts 57 Medicare patients who saw Gregory Tonnesen in 2024, with an average age of 70.
Where did Gregory Tonnesen go to medical school?
Gregory Tonnesen graduated from Life Chiropractic College in 2020.
How long has Gregory Tonnesen been practicing?
Gregory Tonnesen graduated from medical school in 2020, 6 years ago.
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