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Dr. Diana L. Wertz, MD, PhD
NPI1205147113
- Medicare services, 2021
- 176
- Part D claims, 2021
- 23
- Publications
- 1
- Insurance carriers
- 1
- State license
- 1
- Practice address
- 1700 S Amphlett Blvd, San Mateo, CA 94402-2701
- Practice phone
- Call (650) 690-2778
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Wertz'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. Diana L. Wertz is a psychiatrist in San Mateo, California
Dr. Wertz practices in San Mateo, California.
Dr. Wertz's NPI, 1205147113, was assigned on June 24, 2010. Dr. Wertz graduated from Stanford University School Of Medicine in 2010. Dr. Wertz's California license number on file is A119989.
NPI and contact details
- NPI
- 1205147113NPI Registry (opens in a new tab)
- NPI enumeration date
- June 24, 2010
- NPI status
- Active
- Practice phone
- (650) 690-2778
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Diana L. Wertz's practice address is in San Mateo, California
Dr. Wertz's practice address in the NPI Registry is 1700 S Amphlett Blvd, San Mateo, CA 94402-2701. The practice phone is (650) 690-2778.
- NPI Registry address1700 S Amphlett Blvd, San Mateo, CA 94402-2701Phone(650) 690-2778
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Diana L. Wertz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wertz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Wertz's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diana L. Wertz is one of 6,803 psychiatrists in California
Psychiatry is Dr. Wertz's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Wertz is board certified in obesity medicine by the American Board of Obesity Medicine. Dr. Wertz has a license on file in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Wertz
Counts of psychiatrists 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. Diana L. Wertz billed Medicare for 176 services in 2021
CMS data shows 176 Medicare services from Dr. Wertz across 1 procedure code in 2021. Medicare paid $6,003 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2021176
Paid by Medicare$6,003
Procedure codes1
Dr. Wertz's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 5122021: 17666%
Dr. Wertz compared with the California median for psychiatrists, 2021
- Dr. Wertz
- California median
- Medicare services
- 176vs 11948% above
- Part D claims
- 23vs 14484% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Wertz's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diana L. Wertz wrote 23 Medicare Part D claims in 2021
In 2021, Dr. Wertz wrote 23 Medicare Part D claims. They cover 2 drugs, with $468 in total drug cost. In 2018, CMS named 45 claims across 4 drugs.
Part D claims, 202123
Drugs named by CMS2
Total drug cost$468
Dr. Wertz's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2021
- 2018
- 2021
- Claims for drugs CMS names
- 2018: 452021: 2349%
Drugs named by CMS: 2 in 2021, 4 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Diana L. Wertz has 1 publication on record
Dmand AI links 1 paper to Dr. Wertz in 2012. Dr. Wertz's most frequent co-author is Sam Hsi-Jung Shen, MD.
Papers1
Dr. Wertz's most frequent co-authors
Recent publications by Dr. Wertz
See who Dr. Wertz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wertz works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Diana L. Wertz graduated from Stanford University School Of Medicine
Dr. Wertz graduated from Stanford University School Of Medicine in 2010.
- Medical school
- Board certified in obesity medicine
- Board certified in addiction medicine
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Diana L. Wertz accepts plans from 1 insurance carrier
Dr. Wertz is in network with 1 carrier, including Aetna. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Aetna
Plan types Dr. Wertz accepts, by number of carriers
- HMO1
- Medicare1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Diana L. Wertz'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 |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Diana L. Wertz
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. Diana L. Wertz's NPI number?
Dr. Diana L. Wertz's NPI number is 1205147113. It was assigned on June 24, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Diana L. Wertz?
Dr. Diana L. Wertz is a psychiatrist in San Mateo, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Diana L. Wertz practice?
Dr. Wertz practices at 1700 S Amphlett Blvd, San Mateo, CA 94402-2701.
What is Dr. Diana L. Wertz's office phone number?
The practice phone on file for Dr. Wertz is (650) 690-2778.
What is Dr. Diana L. Wertz's medical license number?
Dr. Wertz's California license number on file is A119989.
Does Dr. Diana L. Wertz accept Medicare?
Yes. CMS data shows Dr. Wertz billed Medicare for 176 services in 2021.
Is Dr. Diana L. Wertz board certified?
Yes. Dr. Wertz is board certified in obesity medicine by the American Board of Obesity Medicine.
What services does Dr. Diana L. Wertz bill to Medicare?
In 2021, Dr. Wertz's most billed Medicare services were hospital inpatient care (99231).
Where did Dr. Diana L. Wertz go to medical school?
Dr. Wertz graduated from Stanford University School Of Medicine in 2010.
What drugs does Dr. Diana L. Wertz prescribe most?
In 2021 Medicare Part D data, Dr. Wertz's most prescribed drugs by claims were Lorazepam and Olanzapine ODT.
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How long has Dr. Diana L. Wertz been practicing?
Dr. Wertz graduated from medical school in 2010, 16 years ago.
Does Dr. Diana L. Wertz do research?
Dmand AI links 1 publication to Dr. Wertz.
Who does Dr. Diana L. Wertz publish with?
Dr. Wertz's most frequent co-authors are Sam Hsi-Jung Shen, MD (1 shared paper).
What insurance does Dr. Diana L. Wertz accept?
Dr. Wertz is in network with 1 carrier, including Aetna. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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