Dr. Mark Eric Hessenthaler, MD
- Part D claims, 2024
- 50
- Industry payments
- $4,547
- Affiliated sites
- 1
- Medical groups
- 2
- Insurance carriers
- 7
- Practice address
- 2542 S Bascom Ave, Campbell, CA 95008
- Practice phone
- Call (800) 913-2615
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lgtc Group
Campbell, California
Find Dr. Hessenthaler'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. Mark Eric Hessenthaler is a psychiatrist in Campbell, California
Dr. Hessenthaler practices at Lgtc Group in Campbell, California.
Dr. Hessenthaler's NPI, 1487776506, was assigned on April 6, 2007. Dr. Hessenthaler graduated from Central America Health Sciences University in 2001. Dr. Hessenthaler's California license number on file is C154875.
- NPI
- 1487776506NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456441856
- NPI enumeration date
- April 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (800) 913-2615
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Eric Hessenthaler practices at Lgtc Group in Campbell, California
Dr. Hessenthaler's primary practice is Lgtc Group, at 2542 S Bascom Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (800) 913-2615.
- Lgtc Group2542 S Bascom Ave, Campbell, CA 95008 · Santa Clara CountyPhone(800) 913-2615
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Eric Hessenthaler is affiliated with 2 sites of care and 2 medical groups
Dr. Hessenthaler's primary practice is Lgtc Group in Campbell, California. The medical group on file is LGTC Group. Dmand AI also links Dr. Hessenthaler to 1 more group practice or clinic 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 Dr. Mark Eric Hessenthaler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hessenthaler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lgtc Group | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Eric Hessenthaler is one of 6,803 psychiatrists in California
Psychiatry is Dr. Hessenthaler's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Hessenthaler is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Hessenthaler's licenses on file in 3 states: California, Georgia and North Carolina.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Georgia license
- North Carolina license
Clinical focus
Dmand AI lists bipolar disorder, depression and insomnia among the conditions Dr. Hessenthaler treats.
Psychiatrists near Dr. Hessenthaler
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. Mark Eric Hessenthaler's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Hessenthaler's median patient age at 41, with 54% women.
Dr. Hessenthaler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women54%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Mark Eric Hessenthaler wrote 50 Medicare Part D claims in 2024
In 2024, Dr. Hessenthaler wrote 50 Medicare Part D claims for 14 patients. 74% of them were for generic drugs. They cover 7 drugs, with $6,157 in total drug cost. In 2022, CMS named 62 claims across 4 drugs.
Dr. Hessenthaler's Part D claims by kind of drug, 2024
- Generic37 claims74%
- Brand-name13 claims26%
Dr. Hessenthaler's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 622023: 151144%
Drugs named by CMS: 7 in 2023, 4 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mark Eric Hessenthaler offers telehealth to Medicare patients
Dr. Hessenthaler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hessenthaler as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark Eric Hessenthaler received $4,547 in industry payments from 2019 to 2025
CMS Open Payments shows 145 general payments to Dr. Hessenthaler from 21 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 80% of the total. Neuronetics, Inc. paid the most, $1,594.
General payments to Dr. Hessenthaler by program year, 2019 to 2025
General payments to Dr. Hessenthaler by kind, 2019 to 2025
- Food and beverage$3,61780%
- Travel and lodging$93020%
Companies that paid Dr. Hessenthaler the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Eric Hessenthaler graduated from Central America Health Sciences University
Dr. Hessenthaler graduated from Central America Health Sciences University in 2001.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Mark Eric Hessenthaler accepts plans from 7 insurance carriers
Dr. Hessenthaler is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- United Healthcare
Plan types Dr. Hessenthaler accepts, by number of carriers
- Medicare7
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Eric Hessenthaler'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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) |
| 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. Mark Eric Hessenthaler
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. Mark Eric Hessenthaler's NPI number?
Dr. Mark Eric Hessenthaler's NPI number is 1487776506. It was assigned on April 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Eric Hessenthaler?
Dr. Mark Eric Hessenthaler is a psychiatrist in Campbell, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mark Eric Hessenthaler practice?
Dr. Hessenthaler practices at 2542 S Bascom Ave, Campbell, CA 95008. Dr. Hessenthaler's primary practice is Lgtc Group in Campbell, California. Dmand AI also links Dr. Hessenthaler to 1 group practice or clinic and 1 medical group.
What is Dr. Mark Eric Hessenthaler's office phone number?
The practice phone on file for Dr. Hessenthaler is (800) 913-2615.
What is Dr. Mark Eric Hessenthaler's medical license number?
Dr. Hessenthaler's California license number on file is C154875, one of the licenses on file in 3 states.
Which states has Dr. Mark Eric Hessenthaler been licensed in?
Dmand AI has state licenses on file for Dr. Hessenthaler in California (2018 to 2025), Georgia (2013 to 2025) and North Carolina (2007 to 2025).
What medical group is Dr. Mark Eric Hessenthaler part of?
Dr. Hessenthaler is linked to LGTC Group. Dmand AI links Dr. Hessenthaler to 1 more medical group.
Does Dr. Mark Eric Hessenthaler accept Medicare?
Yes. CMS lists Dr. Hessenthaler as accepting Medicare assignment.
Does Dr. Mark Eric Hessenthaler offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hessenthaler as offering telehealth services.
Is Dr. Mark Eric Hessenthaler board certified?
Yes. Dr. Hessenthaler is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 5 more questionsShow fewer questions
Where did Dr. Mark Eric Hessenthaler go to medical school?
Dr. Hessenthaler graduated from Central America Health Sciences University in 2001.
What drugs does Dr. Mark Eric Hessenthaler prescribe most?
In 2023 Medicare Part D data, Dr. Hessenthaler's most prescribed drugs by claims were Buspirone HCl, Atomoxetine HCl and Sertraline HCl.
Has Dr. Mark Eric Hessenthaler received payments from drug or device companies?
CMS Open Payments shows $4,547 in general payments to Dr. Hessenthaler from 21 companies from 2019 to 2025. The largest total came from Neuronetics, Inc.
How long has Dr. Mark Eric Hessenthaler been practicing?
Dr. Hessenthaler graduated from medical school in 2001, 25 years ago.
What insurance does Dr. Mark Eric Hessenthaler accept?
Dr. Hessenthaler is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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