Dr. Bruce Lyon Ermann, MD
- Industry payments
- $33
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 500 University Ave, Sacramento, CA 95825-6504
- Practice phone
- Call (916) 679-3693
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John R. Nienow
Primary care practice · Sacramento, California
Find Dr. Ermann'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.
Dr. Bruce Lyon Ermann is an internist in Sacramento, California
Dr. Ermann practices at John R. Nienow in Sacramento, California.
Dr. Ermann's NPI, 1144433319, was assigned on May 7, 2007. Dr. Ermann graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1985. Dr. Ermann holds California license G060705.
- NPI
- 1144433319NPI Registry (opens in a new tab)
- NPI enumeration date
- May 7, 2007
- NPI status
- Active
- Practice phone
- (916) 679-3693
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bruce Lyon Ermann practices at John R. Nienow in Sacramento, California
Dr. Ermann's primary practice is John R. Nienow, at 500 University Ave, Sacramento, CA 95825-6504. The practice phone is (916) 679-3693.
- John R. Nienow500 University Ave, Sacramento, CA 95825-6504Phone(916) 679-3693
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bruce Lyon Ermann is affiliated with 2 sites of care and 2 medical groups
Dr. Ermann's primary practice is John R. Nienow in Sacramento, California. Dmand AI also links Dr. Ermann to 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Bruce Lyon Ermann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ermann practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John R. Nienow | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bruce Lyon Ermann is one of 16,751 internists in California
Internal medicine is Dr. Ermann's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ermann is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ermann is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ermann
Counts of internists 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. Bruce Lyon Ermann received $33 in industry payments in 2022
CMS Open Payments shows 2 general payments to Dr. Ermann from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $33.
Companies that paid Dr. Ermann the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bruce Lyon Ermann graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Ermann graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1985. Dr. Ermann is a member of SHM.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Bruce Lyon Ermann'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (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. Bruce Lyon Ermann
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. Bruce Lyon Ermann's NPI number?
Dr. Bruce Lyon Ermann's NPI number is 1144433319. It was assigned on May 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Bruce Lyon Ermann?
Dr. Bruce Lyon Ermann is an internist in Sacramento, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Bruce Lyon Ermann practice?
Dr. Ermann practices at 500 University Ave, Sacramento, CA 95825-6504. Dr. Ermann's primary practice is John R. Nienow in Sacramento, California. Dmand AI also links Dr. Ermann to 2 medical groups and 1 group practice or clinic.
What is Dr. Bruce Lyon Ermann's office phone number?
The practice phone on file for Dr. Ermann is (916) 679-3693.
What is Dr. Bruce Lyon Ermann's medical license number?
Dr. Ermann holds California license G060705.
Is Dr. Bruce Lyon Ermann board certified?
Yes. Dr. Ermann is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Bruce Lyon Ermann go to medical school?
Dr. Ermann graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1985.
Has Dr. Bruce Lyon Ermann received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. Ermann from 1 company from 2022 to 2022. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Bruce Lyon Ermann been practicing?
Dr. Ermann graduated from medical school in 1985, 41 years ago.
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