Dr. Pamela Nanette Diefenbach, MD
- Part D claims, 2024
- 230
- Industry payments
- $19
- Insurance carriers
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 6041 W Cadillac Ave, Los Angeles, CA 90034
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente - West Los Angeles Medical Center
Los Angeles, California
Find Dr. Diefenbach's professional email, personal email and mobile number
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Dr. Pamela Nanette Diefenbach is a psychiatrist in Los Angeles, California
Dr. Diefenbach practices at Kaiser Permanente - West Los Angeles Medical Center in Los Angeles, California.
Dr. Diefenbach's NPI, 1437100609, was assigned on May 13, 2006. Dr. Diefenbach graduated from Vagelos College of Physicians and Surgeons in 1987. Dr. Diefenbach's California license number on file is G64167.
- NPI
- 1437100609NPI Registry (opens in a new tab)
- NPI enumeration date
- May 13, 2006
- NPI status
- Active
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Pamela Nanette Diefenbach practices at Kaiser Permanente - West Los Angeles Medical Center in Los Angeles, California
Dr. Diefenbach's primary practice is Kaiser Permanente - West Los Angeles Medical Center, at 6041 W Cadillac Ave, Los Angeles, CA 90034 in Los Angeles County. The practice phone is (909) 427-5000.
- Kaiser Permanente - West Los Angeles Medical Center6041 W Cadillac Ave, Los Angeles, CA 90034 · Los Angeles CountyPhone(909) 427-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Pamela Nanette Diefenbach is affiliated with 1 site of care
Dr. Diefenbach's primary practice is Kaiser Permanente - West Los Angeles Medical Center in Los Angeles, California.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Pamela Nanette Diefenbach's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diefenbach practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente - West Los Angeles Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Pamela Nanette Diefenbach is one of 6,803 psychiatrists in California
Psychiatry is Dr. Diefenbach's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Diefenbach is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Diefenbach has a license on file in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Clinical focus
Dmand AI lists schizophrenia among the conditions Dr. Diefenbach treats.
Psychiatrists near Dr. Diefenbach
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. Pamela Nanette Diefenbach wrote 230 Medicare Part D claims in 2024
In 2024, Dr. Diefenbach wrote 230 Medicare Part D claims for 102 patients. 100% of them were for generic drugs. CMS names the drug for 138 of them, across 7 drugs with 11 or more claims each, at $2,933 in total drug cost. In 2023, CMS named 1,490 claims across 27 drugs.
Dr. Diefenbach's Part D claims by kind of drug, 2024
- Generic229 claims100%
- Brand-name and other1 claims0%
Dr. Diefenbach'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.
Drug classes CMS tracks in Dr. Diefenbach's Part D claims, 2024
- Antipsychotics, patients 65 and over10%22 of 230 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4902024: 13891%
Drugs named by CMS: 7 in 2024, 27 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
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Dr. Pamela Nanette Diefenbach received $19 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Diefenbach from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. ACADIA Pharmaceuticals Inc paid the most, $19.
Companies that paid Dr. Diefenbach the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Pamela Nanette Diefenbach graduated from Vagelos College of Physicians and Surgeons
Dr. Diefenbach graduated from Vagelos College of Physicians and Surgeons in 1987.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Pamela Nanette Diefenbach accepts plans from 1 insurance carrier
Dr. Diefenbach is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Diefenbach accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Pamela Nanette Diefenbach'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 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) |
| 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. Pamela Nanette Diefenbach
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. Pamela Nanette Diefenbach's NPI number?
Dr. Pamela Nanette Diefenbach's NPI number is 1437100609. It was assigned on May 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Pamela Nanette Diefenbach?
Dr. Pamela Nanette Diefenbach is a psychiatrist in Los Angeles, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Pamela Nanette Diefenbach practice?
Dr. Diefenbach practices at 6041 W Cadillac Ave, Los Angeles, CA 90034. Dr. Diefenbach's primary practice is Kaiser Permanente - West Los Angeles Medical Center in Los Angeles, California.
What is Dr. Pamela Nanette Diefenbach's office phone number?
The practice phone on file for Dr. Diefenbach is (909) 427-5000.
What is Dr. Pamela Nanette Diefenbach's medical license number?
Dr. Diefenbach's California license number on file is G64167.
Is Dr. Pamela Nanette Diefenbach board certified?
Yes. Dr. Diefenbach is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Pamela Nanette Diefenbach go to medical school?
Dr. Diefenbach graduated from Vagelos College of Physicians and Surgeons in 1987.
What drugs does Dr. Pamela Nanette Diefenbach prescribe most?
In 2024 Medicare Part D data, Dr. Diefenbach's most prescribed drugs by claims were Bupropion XL, Trazodone HCl and Fluoxetine HCl.
Has Dr. Pamela Nanette Diefenbach received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Diefenbach from 1 company from 2019 to 2019. The largest total came from ACADIA Pharmaceuticals Inc.
How long has Dr. Pamela Nanette Diefenbach been practicing?
Dr. Diefenbach graduated from medical school in 1987, 39 years ago.
What insurance does Dr. Pamela Nanette Diefenbach accept?
Dr. Diefenbach is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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