Marsella Hanhan, PA-C
- Part D claims, 2024
- 172
- Hospital affiliations
- 1
- Industry payments
- $111
- Medical groups
- 3
- State license
- 1
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Marsella Hanhan'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.
Marsella Hanhan is a physician assistant in Santa Clara, California
Marsella Hanhan practices at Permanente Medical Group Inc in Santa Clara, California.
Marsella Hanhan's NPI, 1205295631, was assigned on February 12, 2016. Marsella Hanhan holds California license 53222.
- NPI
- 1205295631NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466735238
- NPI enumeration date
- February 12, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Marsella Hanhan practices at Permanente Medical Group Inc in Santa Clara, California
Marsella Hanhan's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marsella Hanhan is affiliated with 2 sites of care and 3 medical groups
Marsella Hanhan's primary practice is Permanente Medical Group Inc in Santa Clara, California. Marsella Hanhan is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Marsella Hanhan to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marsella Hanhan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marsella Hanhan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Marsella Hanhan is one of 11,482 physician assistants in California
Physician assistant is Marsella Hanhan's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marsella Hanhan is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Marsella Hanhan
Counts of physician assistants 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
Marsella Hanhan's patients have a median age of 36
Across all payers, Dmand AI patient panel data puts Marsella Hanhan's median patient age at 36, with 57% women.
Marsella Hanhan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Marsella Hanhan wrote 172 Medicare Part D claims in 2024
In 2024, Marsella Hanhan wrote 172 Medicare Part D claims for 87 patients. 85% of them were for generic drugs. CMS names the drug for 112 of them, across 6 drugs with 11 or more claims each, at $3,284 in total drug cost.
Marsella Hanhan's Part D claims by kind of drug, 2024
- Generic146 claims85%
- Brand-name26 claims15%
Marsella Hanhan'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 Marsella Hanhan's Part D claims, 2024
- Antibiotics8%14 of 172 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Marsella Hanhan takes part in Medicare
Marsella Hanhan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Marsella Hanhan received $111 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marsella Hanhan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Galderma Laboratories, L.P. paid the most, $111.
Companies that paid Marsella Hanhan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marsella Hanhan'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 DataDmand AI Org Hierarchy 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) |
| 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 Marsella Hanhan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marsella Hanhan's NPI number?
Marsella Hanhan's NPI number is 1205295631. It was assigned on February 12, 2016, and it is active in the NPI Registry.
What does Marsella Hanhan specialize in?
Marsella Hanhan is a physician assistant in Santa Clara, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marsella Hanhan practice?
Marsella Hanhan practices at 710 Lawrence Expy, Santa Clara, CA 95051. Marsella Hanhan's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Marsella Hanhan to 2 medical groups.
What is Marsella Hanhan's office phone number?
The practice phone on file for Marsella Hanhan is (408) 851-1000.
What is Marsella Hanhan's medical license number?
Marsella Hanhan holds California license 53222.
Which hospitals is Marsella Hanhan affiliated with?
Marsella Hanhan is affiliated with Stanford Hospital at 300 Pasteur Drive.
What medical group is Marsella Hanhan part of?
Marsella Hanhan is linked to The Permanente Medical Group, Inc. Dmand AI links Marsella Hanhan to 2 more medical groups.
Does Marsella Hanhan accept Medicare?
Yes. CMS lists Marsella Hanhan as accepting Medicare assignment.
What drugs does Marsella Hanhan prescribe most?
In 2024 Medicare Part D data, Marsella Hanhan's most prescribed drugs by claims were Ketoconazole, Fluorouracil and Fluocinonide.
Has Marsella Hanhan received payments from drug or device companies?
CMS Open Payments shows $111 in general payments to Marsella Hanhan from 1 company from 2025 to 2025. The largest total came from Galderma Laboratories, L.P.
How long has Marsella Hanhan been practicing?
Marsella Hanhan graduated from medical school in 2015, 11 years ago.
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