Dr. Joseph A. Gehrz, MD
- Medicare services, 2024
- 137
- Medicare patients, 2024
- 97
- Part D claims, 2024
- 43
- Publications
- 7
- MIPS score, 2024
- 99
- Practice address
- 5555 Grossmont Center Drive Box 58, La Mesa, CA 91942
- Practice phone
- Call (619) 465-0711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gehrz'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. Joseph A. Gehrz is an emergency medicine physician in La Mesa, California
Dr. Gehrz practices at Sharp Grossmont Hospital in La Mesa, California, part of Sharp HealthCare.
Dr. Gehrz's NPI, 1932584612, was assigned on July 23, 2015. Dr. Gehrz graduated from Geisel School Of Medicine At Dartmouth in 2015. Dr. Gehrz holds California license A144011.
- NPI
- 1932584612NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991189649
- NPI enumeration date
- July 23, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 465-0711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph A. Gehrz practices at Sharp Grossmont Hospital in La Mesa, California
Dr. Gehrz's primary practice is Sharp Grossmont Hospital, at 5555 Grossmont Center Drive Box 58, La Mesa, CA 91942 in San Diego County. The practice phone is (619) 465-0711.
- Sharp Grossmont Hospital5555 Grossmont Center Drive Box 58, La Mesa, CA 91942 · San Diego CountyPhone(619) 465-0711
Source: Dmand AI Affiliation Data
Dr. Joseph A. Gehrz is affiliated with 6 sites of care and 4 medical groups
Dr. Gehrz's primary practice is Sharp Grossmont Hospital in La Mesa, California, part of Sharp HealthCare. Dr. Gehrz is also affiliated with Sharp Coronado Hospital. The medical group on file is TeamHealth. Dmand AI also links Dr. Gehrz to 4 more group practices and clinics and 3 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph A. Gehrz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gehrz practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Grossmont Hospital | Available with a free account |
| +5 more sites and 3 medical groups | 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 Sharp HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joseph A. Gehrz is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Gehrz's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Gehrz is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Gehrz is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Gehrz
Counts of emergency medicine physicians 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. Joseph A. Gehrz billed Medicare for 137 services in 2024
CMS data shows 137 Medicare services from Dr. Gehrz across 4 procedure codes in 2024, for 97 Medicare patients. Medicare paid $13,211 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gehrz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 192024: 94395%
- Tests and treatments
- 2023: 142024: 43207%
Dr. Gehrz compared with the California median for emergency medicine physicians, 2024
- Dr. Gehrz
- California median
- Medicare services
- 137vs 26548% below
- Medicare patients
- 97vs 24360% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Gehrz's most billed Medicare procedure codes, 2024
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gehrz and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph A. Gehrz treated 97 Medicare patients in 2024, average age 75
CMS counts 97 Medicare patients who saw Dr. Gehrz in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 63% are also on Medicaid. Their average risk score is 2.42, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gehrz's median patient age at 50, with 56% women.
Dr. Gehrz's Medicare patients by age, 2024
Dr. Gehrz's Medicare patients by sex, 2024
- Women4951%
- Men4849%
Chronic conditions among Dr. Gehrz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes53%
- Heart failure46%
- Chronic kidney disease43%
- Ischemic heart disease43%
- Mood disorders42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gehrz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph A. Gehrz wrote 43 Medicare Part D claims in 2024
In 2024, Dr. Gehrz wrote 43 Medicare Part D claims for 27 patients. 98% of them were for generic drugs.
Dr. Gehrz's Part D claims by kind of drug, 2024
- Generic42 claims98%
- Brand-name and other1 claims2%
Drug classes CMS tracks in Dr. Gehrz's Part D claims, 2024
- Antibiotics44%19 of 43 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joseph A. Gehrz scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Gehrz for performance year 2024, reported as part of a group. Dr. Gehrz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Gehrz's MIPS scores, performance year 2024
- 99of 100Final score
- 86.5of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Joseph A. Gehrz has 7 publications on record
Dmand AI links 7 papers to Dr. Gehrz, published from 2020 to 2024. 2023 was the busiest year, with 2. The most frequent topics are Diagnosis, Differential. Dr. Gehrz's most frequent co-authors are Alec Emerling, MD, William D. Goldenberg, MD and Jonathan David Auten, DO.
Dr. Gehrz's papers by year, 2020 to 2024
Topics Dr. Gehrz writes about most
- Diagnosis, Differential
Dr. Gehrz's most frequent co-authors
- Alec Emerling, MD2 shared papers
- William D. Goldenberg, MD2 shared papers
- Jonathan David Auten, DO1 shared paper
Recent publications by Dr. Gehrz
See who Dr. Gehrz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gehrz works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joseph A. Gehrz received $604 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Gehrz from 2 drug and device companies in 2025. Travel and lodging make up the largest share, 100% of the total. MAQUET Cardiovascular U.S. Sales, L.L.C. paid the most, $489.
Companies that paid Dr. Gehrz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph A. Gehrz graduated from Geisel School Of Medicine At Dartmouth
Dr. Gehrz graduated from Geisel School Of Medicine At Dartmouth in 2015.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Joseph A. Gehrz accepts plans from 1 insurance carrier
Dr. Gehrz is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Joseph A. Gehrz'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Joseph A. Gehrz
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. Joseph A. Gehrz's NPI number?
Dr. Joseph A. Gehrz's NPI number is 1932584612. It was assigned on July 23, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph A. Gehrz?
Dr. Joseph A. Gehrz is an emergency medicine physician in La Mesa, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Joseph A. Gehrz practice?
Dr. Gehrz practices at 5555 Grossmont Center Drive Box 58, La Mesa, CA 91942. Dr. Gehrz's primary practice is Sharp Grossmont Hospital in La Mesa, California, part of Sharp HealthCare. Dmand AI also links Dr. Gehrz to 4 group practices and clinics and 3 medical groups.
What is Dr. Joseph A. Gehrz's office phone number?
The practice phone on file for Dr. Gehrz is (619) 465-0711.
What is Dr. Joseph A. Gehrz's medical license number?
Dr. Gehrz holds California license A144011.
Which hospitals is Dr. Joseph A. Gehrz affiliated with?
Dr. Gehrz practices at Sharp Grossmont Hospital in La Mesa, California. Dr. Gehrz is also affiliated with Sharp Coronado Hospital.
What medical group is Dr. Joseph A. Gehrz part of?
Dr. Gehrz is linked to TeamHealth. Dmand AI links Dr. Gehrz to 3 more medical groups.
Does Dr. Joseph A. Gehrz accept Medicare?
Yes. CMS data shows Dr. Gehrz billed Medicare for 137 services in 2024, and Dr. Gehrz accepts Medicare assignment.
What is Dr. Joseph A. Gehrz's MIPS score?
Dr. Gehrz's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
How many Medicare patients does Dr. Joseph A. Gehrz see?
CMS counts 97 Medicare patients who saw Dr. Gehrz in 2024, with an average age of 75.
Show 8 more questionsShow fewer questions
Is Dr. Joseph A. Gehrz board certified?
Yes. Dr. Gehrz is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Joseph A. Gehrz bill to Medicare?
In 2024, Dr. Gehrz's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. Joseph A. Gehrz go to medical school?
Dr. Gehrz graduated from Geisel School Of Medicine At Dartmouth in 2015.
Has Dr. Joseph A. Gehrz received payments from drug or device companies?
CMS Open Payments shows $604 in general payments to Dr. Gehrz from 2 companies from 2025 to 2025. The largest total came from MAQUET Cardiovascular U.S. Sales, L.L.C.
How long has Dr. Joseph A. Gehrz been practicing?
Dr. Gehrz graduated from medical school in 2015, 11 years ago.
Does Dr. Joseph A. Gehrz do research?
Dmand AI links 7 publications to Dr. Gehrz, published from 2020 to 2024.
Who does Dr. Joseph A. Gehrz publish with?
Dr. Gehrz's most frequent co-authors are Alec Emerling, MD (2 shared papers), William D. Goldenberg, MD (2 shared papers) and Jonathan David Auten, DO (1 shared paper).
What insurance does Dr. Joseph A. Gehrz accept?
Dr. Gehrz is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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