Dr. Katherine S. Fassihi, MD
- Medicare patients, 2024
- 18
- Part D claims, 2024
- 523
- Hospital affiliations
- 2
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 13652 Cantara St, Panorama City, CA 91402
- Practice phone
- Call (818) 375-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fassihi's professional email, personal email and mobile number
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Dr. Katherine S. Fassihi is an internist in Panorama City, California
Dr. Fassihi practices at Panorama City Medical Center in Panorama City, California, part of Kaiser Permanente.
Dr. Fassihi's NPI, 1396893129, was assigned on January 8, 2007. Dr. Fassihi graduated from Baylor College Of Medicine in 1997. Dr. Fassihi holds California license A68023.
- NPI
- 1396893129NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214081934
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (818) 375-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine S. Fassihi practices at Panorama City Medical Center in Panorama City, California
Dr. Fassihi's primary practice is Panorama City Medical Center, at 13652 Cantara St, Panorama City, CA 91402 in Los Angeles County. The practice phone is (818) 375-2000.
- Panorama City Medical Center13652 Cantara St, Panorama City, CA 91402 · Los Angeles CountyPhone(818) 375-2000
Source: Dmand AI Affiliation Data
Dr. Katherine S. Fassihi is affiliated with 2 sites of care and 1 medical group
Dr. Fassihi's primary practice is Panorama City Medical Center in Panorama City, California, part of Kaiser Permanente. Dr. Fassihi is also affiliated with West Los Angeles Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine S. Fassihi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fassihi practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Panorama City Medical Center | 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. Katherine S. Fassihi is one of 16,751 internists in California
Internal medicine is Dr. Fassihi's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fassihi is board certified in internal medicine by the American Board of Internal Medicine. Dr. Fassihi is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Fassihi
Counts of internists 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. Katherine S. Fassihi treated 18 Medicare patients in 2024, average age 68
CMS counts 18 Medicare patients who saw Dr. Fassihi in 2024. The largest group is 85 and over, with 0 patients. 61% of them have high blood pressure. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fassihi's median patient age at 69, with 57% women.
Dr. Fassihi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Fassihi's Medicare patients, 2024
- High blood pressure61%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fassihi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine S. Fassihi wrote 523 Medicare Part D claims in 2024
In 2024, Dr. Fassihi wrote 523 Medicare Part D claims for 264 patients. 84% of them were for generic drugs. CMS names the drug for 368 of them, across 11 drugs with 11 or more claims each, at $4,936 in total drug cost. In 2023, CMS named 312 claims across 8 drugs.
Dr. Fassihi's Part D claims by kind of drug, 2024
- Generic439 claims84%
- Brand-name45 claims9%
- Other39 claims7%
Dr. Fassihi'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. Fassihi's Part D claims, 2024
- Antibiotics3%14 of 523 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: 3122024: 36818%
Drugs named by CMS: 11 in 2024, 8 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. Katherine S. Fassihi offers telehealth to Medicare patients
Dr. Fassihi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fassihi as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Katherine S. Fassihi graduated from Baylor College Of Medicine
Dr. Fassihi graduated from Baylor College Of Medicine in 1997.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Katherine S. Fassihi accepts plans from 2 insurance carriers
Dr. Fassihi is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Fassihi accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Katherine S. Fassihi'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 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) |
| 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. Katherine S. Fassihi
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. Katherine S. Fassihi's NPI number?
Dr. Katherine S. Fassihi's NPI number is 1396893129. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine S. Fassihi?
Dr. Katherine S. Fassihi is an internist in Panorama City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Katherine S. Fassihi practice?
Dr. Fassihi practices at 13652 Cantara St, Panorama City, CA 91402. Dr. Fassihi's primary practice is Panorama City Medical Center in Panorama City, California, part of Kaiser Permanente.
What is Dr. Katherine S. Fassihi's office phone number?
The practice phone on file for Dr. Fassihi is (818) 375-2000.
What is Dr. Katherine S. Fassihi's medical license number?
Dr. Fassihi holds California license A68023.
Which hospitals is Dr. Katherine S. Fassihi affiliated with?
Dr. Fassihi practices at Panorama City Medical Center in Panorama City, California. Dr. Fassihi is also affiliated with West Los Angeles Medical Center.
What medical group is Dr. Katherine S. Fassihi part of?
Dr. Fassihi is linked to Southern California Permanente Medical Group.
Does Dr. Katherine S. Fassihi accept Medicare?
Yes. CMS lists Dr. Fassihi as accepting Medicare assignment.
Does Dr. Katherine S. Fassihi offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fassihi as offering telehealth services.
How many Medicare patients does Dr. Katherine S. Fassihi see?
CMS counts 18 Medicare patients who saw Dr. Fassihi in 2024, with an average age of 68.
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Is Dr. Katherine S. Fassihi board certified?
Yes. Dr. Fassihi is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Katherine S. Fassihi go to medical school?
Dr. Fassihi graduated from Baylor College Of Medicine in 1997.
What drugs does Dr. Katherine S. Fassihi prescribe most?
In 2024 Medicare Part D data, Dr. Fassihi's most prescribed drugs by claims were Omeprazole, Amlodipine Besylate and Humalog.
How long has Dr. Katherine S. Fassihi been practicing?
Dr. Fassihi graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Katherine S. Fassihi accept?
Dr. Fassihi is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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