Dr. David Feifel, MD
- Medicare services, 2024
- 565
- Medicare patients, 2024
- 60
- Part D claims, 2024
- 28
- Publications
- 130
- Clinical trials
- 14
- Practice address
- 3252 Holiday Ct, La Jolla, CA 92037
- Practice phone
- Call (858) 838-4204
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Proactive Health Solutions, APC
La Jolla, California
Find Dr. Feifel'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. David Feifel is a psychiatrist in La Jolla, California
Dr. Feifel practices at Proactive Health Solutions, APC in La Jolla, California.
Dr. Feifel's NPI, 1053467738, was assigned on January 26, 2007. Dr. Feifel graduated from University of Toronto Faculty of Medicine in 1991. Dr. Feifel holds California license A51236.
- NPI
- 1053467738NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305039348
- NPI enumeration date
- January 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 838-4204
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Feifel practices at Proactive Health Solutions, APC in La Jolla, California
Dr. Feifel's primary practice is Proactive Health Solutions, APC, at 3252 Holiday Ct, La Jolla, CA 92037 in San Diego County. The practice phone is (858) 838-4204.
- Proactive Health Solutions, APC3252 Holiday Ct, La Jolla, CA 92037 · San Diego CountyPhone(858) 838-4204
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Feifel is affiliated with 2 sites of care and 1 medical group
Dr. Feifel's primary practice is Proactive Health Solutions, APC in La Jolla, California. The medical group on file is Kadima Neuropsychiatry Institute. Dmand AI also links Dr. Feifel to 1 more group practice or clinic, 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. David Feifel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feifel practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Proactive Health Solutions, APC | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Feifel is one of 6,803 psychiatrists in California
Psychiatry is Dr. Feifel's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Feifel is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Feifel is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Clinical focus
Dmand AI lists depression among the conditions Dr. Feifel treats.
Psychiatrists near Dr. Feifel
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. David Feifel billed Medicare for 565 services in 2024
CMS data shows 565 Medicare services from Dr. Feifel across 5 procedure codes in 2024, for 60 Medicare patients. Medicare paid $119,126 for them. Every service was in an office.
Dr. Feifel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 6162024: 46824%
- Other services
- 2023: 722024: 6017%
- Office and hospital visits
- 2023: 542024: 3731%
Dr. Feifel compared with the California median for psychiatrists, 2024
- Dr. Feifel
- California median
- Medicare services
- 565vs 1194.7 times
- Medicare patients
- 60vs 4146% above
- Part D claims
- 23vs 14484% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Feifel'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.
Need commercial claims for Dr. Feifel?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Feifel and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Feifel treated 60 Medicare patients in 2024, average age 69
CMS counts 60 Medicare patients who saw Dr. Feifel in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have depression, and 75% have mood disorders. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Feifel's median patient age at 42, with 58% women.
Dr. Feifel's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Feifel's Medicare patients by sex, 2024
- Women4168%
- Men1932%
Chronic conditions among Dr. Feifel's Medicare patients, 2024
- Depression75%
- Mood disorders75%
- Anxiety68%
- High cholesterol63%
- High blood pressure43%
- Arthritis32%
- Osteoporosis27%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Feifel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Feifel wrote 28 Medicare Part D claims in 2024
In 2024, Dr. Feifel wrote 28 Medicare Part D claims. CMS names the drug for 23 of them, across 1 drug with 11 or more claims each, at $28,060 in total drug cost. In 2023, CMS named 43 claims across 2 drugs.
Dr. Feifel's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 432024: 2347%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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. David Feifel offers telehealth to Medicare patients
Dr. Feifel accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Feifel as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Feifel has 130 publications on record
Dmand AI links 130 papers to Dr. Feifel, published from 2002 to 2025. 2021 was the busiest year, with 8. The most frequent topics are Reflex, Startle, Antipsychotic Agents and Oxytocin. Dr. Feifel has published most often in J Clin Psychiatry. Dr. Feifel's most frequent co-authors are Kaimana S. MacDonald, MD, Aron Tendler, MD and Joyce Tsai, MD.
Dr. Feifel's papers by year, 2015 to 2025
Topics Dr. Feifel writes about most
- Reflex, Startle
- Antipsychotic Agents
- Oxytocin
- Double-Blind Method
- Schizophrenia
- Acoustic Stimulation
- Analysis of Variance
- Rats, Sprague-Dawley
Dr. Feifel's most frequent co-authors
- Kaimana S. MacDonald, MD10 shared papers
- Aron Tendler, MD5 shared papers
- Joyce Tsai, MD5 shared papers
Recent publications by Dr. Feifel
J Affect Disord
Neuropharmacology
Psychoneuroendocrinology
See who Dr. Feifel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Feifel 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. David Feifel has worked on 14 clinical trials
Dmand AI links Dr. Feifel to 14 clinical trials, 2 of them phase 2 studies. Conditions studied include Schizophrenia, Depressive Disorder and Schizophrenia Spectrum and Other Psychotic Disorders. University of California, San Diego sponsors the most, 4.
Clinical trials with Dr. Feifel by phase
- NonePhase 1: no trials
- 2Phase 2: 2 trials
- 1Phase 3: 1 trial
- 1Phase 4: 1 trial
Conditions in Dr. Feifel's trials
- Schizophrenia
- Depressive Disorder
- Schizophrenia Spectrum and Other Psychotic Disorders
- Bipolar and Related Disorders
- Depressive Disorder, Major
Investigators on the most trials with Dr. Feifel
- Aron Tendler, MD3 shared trials
- Mahendra Takashi Bhati, MD2 shared trials
- Walter J. Duffy, MD2 shared trials
Recent clinical trials with Dr. Feifel
The Safety and Efficacy Of Psilocybin as an Adjunctive Therapy in Participants With Treatment Resistant Depression (opens in a new tab)
The Safety and Efficacy of Psilocybin in Participants With Treatment Resistant Depression (opens in a new tab)
Adaptive Design Study of NEST sTMS in Subjects With Major Depressive Disorder (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. David Feifel received $7,885 in industry payments from 2016 to 2025
CMS Open Payments shows 23 general payments to Dr. Feifel from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 41% of the total. Janssen Pharmaceuticals, Inc paid the most, $3,517.
General payments to Dr. Feifel by program year, 2016 to 2025
General payments to Dr. Feifel by kind, 2016 to 2025
- Food and beverage$3,26441%
- Speaker and faculty fees$2,25029%
- Consulting fees$1,60020%
- Travel and lodging$77110%
Companies that paid Dr. Feifel the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Feifel has 1 award and honors on record
Dmand AI lists 1 award for Dr. Feifel, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Feifel
- 2014
- Regional Top Doctor
Source: Dmand AI Professional Profile Data
Dr. David Feifel graduated from University of Toronto Faculty of Medicine
Dr. Feifel graduated from University of Toronto Faculty of Medicine in 1991.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. David Feifel accepts plans from 9 insurance carriers
Dr. Feifel is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- Regence Health Plans
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Feifel accepts, by number of carriers
- Medicare9
- PPO7
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. David Feifel'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 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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. David Feifel
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. David Feifel's NPI number?
Dr. David Feifel's NPI number is 1053467738. It was assigned on January 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David Feifel?
Dr. David Feifel is a psychiatrist in La Jolla, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. David Feifel practice?
Dr. Feifel practices at 3252 Holiday Ct, La Jolla, CA 92037. Dr. Feifel's primary practice is Proactive Health Solutions, APC in La Jolla, California. Dmand AI also links Dr. Feifel to 1 group practice or clinic.
What is Dr. David Feifel's office phone number?
The practice phone on file for Dr. Feifel is (858) 838-4204.
What is Dr. David Feifel's medical license number?
Dr. Feifel holds California license A51236.
What medical group is Dr. David Feifel part of?
Dr. Feifel is linked to Kadima Neuropsychiatry Institute.
Does Dr. David Feifel accept Medicare?
Yes. CMS data shows Dr. Feifel billed Medicare for 565 services in 2024, and Dr. Feifel accepts Medicare assignment.
Does Dr. David Feifel offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Feifel as offering telehealth services.
How many Medicare patients does Dr. David Feifel see?
CMS counts 60 Medicare patients who saw Dr. Feifel in 2024, with an average age of 69.
Is Dr. David Feifel board certified?
Yes. Dr. Feifel is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 8 more questionsShow fewer questions
What services does Dr. David Feifel bill to Medicare?
In 2024, Dr. Feifel's most billed Medicare services were psychiatric service (90868), health assessment (96130) and medicare service (G2083).
Where did Dr. David Feifel go to medical school?
Dr. Feifel graduated from University of Toronto Faculty of Medicine in 1991.
What drugs does Dr. David Feifel prescribe most?
In 2024 Medicare Part D data, Dr. Feifel's most prescribed drugs by claims were Spravato.
Has Dr. David Feifel received payments from drug or device companies?
CMS Open Payments shows $7,885 in general payments to Dr. Feifel from 4 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. David Feifel been practicing?
Dr. Feifel graduated from medical school in 1991, 35 years ago.
Does Dr. David Feifel do research?
Dmand AI links 130 publications to Dr. Feifel, published from 2002 to 2025. Dr. Feifel has worked on 14 clinical trials.
Who does Dr. David Feifel publish with?
Dr. Feifel's most frequent co-authors are Kaimana S. MacDonald, MD (10 shared papers), Aron Tendler, MD (5 shared papers) and Joyce Tsai, MD (5 shared papers).
What insurance does Dr. David Feifel accept?
Dr. Feifel is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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