Gregory Alan Oltmann, DC
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2013
- 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 Oltmann'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 Alan Oltmann is a chiropractor in Oakland, California
Gregory Oltmann practices at American Specialty Health Clearinghouse, Inc. in Oakland, California.
Gregory Oltmann's NPI, 1588907570, was assigned on March 28, 2013. Gregory Oltmann holds Oregon license 5138.
- NPI
- 1588907570NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365816212
- NPI enumeration date
- March 28, 2013
- 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
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory Alan Oltmann practices at American Specialty Health Clearinghouse, Inc. in Oakland, California
Gregory Oltmann'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 Alan Oltmann is affiliated with 3 sites of care and 1 medical group
Gregory Oltmann's primary practice is American Specialty Health Clearinghouse, Inc. in Oakland, California. Dmand AI also links Gregory Oltmann to 1 physician office, 1 group practice or clinic and 1 medical group, each 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 Alan Oltmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Oltmann practices, 2 sites in all. 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 |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory Alan Oltmann is one of 4,365 chiropractors in California
Chiropractor is Gregory Oltmann's primary specialty in the NPI Registry, under taxonomy code 111N00000X. Gregory Oltmann is licensed in Oregon.
Specialties and state licenses
- Chiropractor, OregonPrimary
Chiropractors near Gregory Oltmann
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 Alan Oltmann's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Gregory Oltmann's median patient age at 46, with 58% women.
Gregory Oltmann'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
- Women58%
- Men41%
Source: Dmand AI Patient Panel Data
How Gregory Alan Oltmann takes part in Medicare
Gregory Oltmann 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)
Sources for Gregory Alan Oltmann'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 Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Alan Oltmann
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 Alan Oltmann's NPI number?
Gregory Alan Oltmann's NPI number is 1588907570. It was assigned on March 28, 2013, and it is active in the NPI Registry.
What does Gregory Alan Oltmann specialize in?
Gregory Alan Oltmann is a chiropractor in Oakland, California. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does Gregory Alan Oltmann practice?
Gregory Oltmann practices at 3718 Grand Ave, Oakland, CA 94610. Gregory Oltmann's primary practice is American Specialty Health Clearinghouse, Inc. in Oakland, California. Dmand AI also links Gregory Oltmann to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Gregory Alan Oltmann's office phone number?
The practice phone on file for Gregory Oltmann is (800) 848-3535.
What is Gregory Alan Oltmann's medical license number?
Gregory Oltmann holds Oregon license 5138.
Does Gregory Alan Oltmann accept Medicare?
Yes. CMS lists Gregory Oltmann as accepting Medicare assignment.
How long has Gregory Alan Oltmann been practicing?
Gregory Oltmann graduated from medical school in 2013, 13 years ago.
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