Rosemary Janssen Barnhart, NP
- Hospital affiliations
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 3750 Convoy St, San Diego, CA 92111
- Practice phone
- Call (858) 278-8110
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Joel J. Smith, M.D. Inc.
San Diego, California
Find Rosemary Barnhart'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.
Rosemary Janssen Barnhart is an acute care nurse practitioner in San Diego, California
Rosemary Barnhart practices at Joel J. Smith, M.D. Inc. in San Diego, California.
Rosemary Barnhart's NPI, 1215820998, was assigned on May 31, 2025. Rosemary Barnhart holds California license 95035720.
- NPI
- 1215820998NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395249783
- NPI enumeration date
- May 31, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 278-8110
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Rosemary Janssen Barnhart practices at Joel J. Smith, M.D. Inc. in San Diego, California
Rosemary Barnhart's primary practice is Joel J. Smith, M.D. Inc., at 3750 Convoy St, San Diego, CA 92111 in San Diego County. The practice phone is (858) 278-8110.
- Joel J. Smith, M.D. Inc.3750 Convoy St, San Diego, CA 92111 · San Diego CountyPhone(858) 278-8110
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Rosemary Janssen Barnhart is affiliated with 5 sites of care and 2 medical groups
Rosemary Barnhart's primary practice is Joel J. Smith, M.D. Inc. in San Diego, California. Rosemary Barnhart is also affiliated with Sharp Memorial Hospital. The medical group on file is Joel J Smith MD Inc. Dmand AI also links Rosemary Barnhart to 1 more hospital, 2 group practices and clinics 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 Rosemary Janssen Barnhart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Rosemary Barnhart practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Joel J. Smith, M.D. Inc. | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Rosemary Janssen Barnhart is one of 1,440 acute care nurse practitioners in California
Acute care is Rosemary Barnhart's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Rosemary Barnhart is licensed in California.
Specialties and state licenses
- Acute care nurse practitioner, CaliforniaPrimary
Acute care nurse practitioners near Rosemary Barnhart
Counts of acute care nurse practitioners 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
Rosemary Janssen Barnhart's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Rosemary Barnhart's median patient age at 70, with 52% women.
Rosemary Barnhart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
How Rosemary Janssen Barnhart takes part in Medicare
Rosemary Barnhart 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 Rosemary Janssen Barnhart'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 Rosemary Janssen Barnhart
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Rosemary Janssen Barnhart's NPI number?
Rosemary Janssen Barnhart's NPI number is 1215820998. It was assigned on May 31, 2025, and it is active in the NPI Registry.
What does Rosemary Janssen Barnhart specialize in?
Rosemary Janssen Barnhart is an acute care nurse practitioner in San Diego, California. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Rosemary Janssen Barnhart practice?
Rosemary Barnhart practices at 3750 Convoy St, San Diego, CA 92111. Rosemary Barnhart's primary practice is Joel J. Smith, M.D. Inc. in San Diego, California. Dmand AI also links Rosemary Barnhart to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Rosemary Janssen Barnhart's office phone number?
The practice phone on file for Rosemary Barnhart is (858) 278-8110.
What is Rosemary Janssen Barnhart's medical license number?
Rosemary Barnhart holds California license 95035720.
Which hospitals is Rosemary Janssen Barnhart affiliated with?
Rosemary Barnhart is affiliated with Sharp Memorial Hospital. Dmand AI links Rosemary Barnhart to 1 more hospital.
What medical group is Rosemary Janssen Barnhart part of?
Rosemary Barnhart is linked to Joel J Smith MD Inc. Dmand AI links Rosemary Barnhart to 1 more medical group.
Does Rosemary Janssen Barnhart accept Medicare?
Yes. CMS lists Rosemary Barnhart as accepting Medicare assignment.
How long has Rosemary Janssen Barnhart been practicing?
Rosemary Barnhart graduated from medical school in 2025, 1 years ago.
Selling to acute care practices?
See acute care nurse practitioners in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card