Mary J. Tierney, NP
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice locations
- 2
- Practice address
- 222 W 39th Ave, San Mateo, CA 94403
- Practice phone
- Call (650) 573-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mary Tierney'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.
Mary J. Tierney is a nurse practitioner in Stanford, California
Mary Tierney practices at San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California.
Mary Tierney's NPI, 1245301571, was assigned on November 10, 2006. Mary Tierney holds California license NP8020.
- NPI
- 1245301571NPI Registry (opens in a new tab)
- NPI enumeration date
- November 10, 2006
- NPI status
- Active
- Practice phone
- (650) 573-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary J. Tierney practices in San Mateo and Stanford
Mary Tierney's primary practice is San Mateo Medical Center, at 222 W 39th Ave, San Mateo, CA 94403 in San Mateo County. The practice phone is (650) 573-2222. The NPI Registry lists Mary Tierney's practice address as 300 Pasteur Dr, Stanford, CA 94305.
- San Mateo Medical CenterPrimary222 W 39th Ave, San Mateo, CA 94403 · San Mateo CountyPhone(650) 573-2222
- NPI Registry address300 Pasteur Dr, Stanford, CA 94305 · Santa Clara County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Mary J. Tierney is affiliated with 1 site of care and 1 medical group
Mary Tierney's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. The medical group on file is San Mateo Medical Center.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mary J. Tierney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Tierney practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Mateo Medical Center | 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 County of San Mateo, California and 6.2K+ hospitals, with verified contacts in the same login.
Mary J. Tierney is one of 5,983 nurse practitioners in California
Nurse practitioner is Mary Tierney's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Mary Tierney is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Nurse practitioners near Mary Tierney
Counts of 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
Mary J. Tierney's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Mary Tierney's median patient age at 70, with 50% women.
Mary Tierney'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
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Sources for Mary J. Tierney'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel 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 Mary J. Tierney
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary J. Tierney's NPI number?
Mary J. Tierney's NPI number is 1245301571. It was assigned on November 10, 2006, and it is active in the NPI Registry.
What does Mary J. Tierney specialize in?
Mary J. Tierney is a nurse practitioner in Stanford, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Mary J. Tierney practice?
Mary Tierney practices at 222 W 39th Ave, San Mateo, CA 94403. Mary Tierney also practices at 300 Pasteur Dr, Stanford, CA 94305. Mary Tierney's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California.
What is Mary J. Tierney's office phone number?
The practice phone on file for Mary Tierney is (650) 573-2222.
What is Mary J. Tierney's medical license number?
Mary Tierney holds California license NP8020.
Which hospitals is Mary J. Tierney affiliated with?
Mary Tierney practices at San Mateo Medical Center in San Mateo, California.
What medical group is Mary J. Tierney part of?
Mary Tierney is linked to San Mateo Medical Center.
How long has Mary J. Tierney been practicing?
Mary Tierney's NPI was assigned in 2006.
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