Gwen S. Janczyk, PA
- Medicare services, 2024
- 2,491
- Medicare patients, 2024
- 621
- Part D claims, 2024
- 1,184
- Hospital affiliations
- 2
- Industry payments
- $12,899
- Practice address
- 9898 Genesee Avenue, La Jolla, CA 92037
- Practice phone
- Call (414) 975-3807
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Scripps Clinic la Jolla ASC
Surgery Center - Medicare-Certified · La Jolla, California
Find Gwen Janczyk'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.
Gwen S. Janczyk is a physician assistant in La Jolla, California
Gwen Janczyk practices at Scripps Clinic la Jolla ASC in La Jolla, California.
Gwen Janczyk's NPI, 1417022013, was assigned on November 21, 2006. Gwen Janczyk holds California license PA15930.
- NPI
- 1417022013NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072670231
- NPI enumeration date
- November 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (414) 975-3807
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gwen S. Janczyk practices at Scripps Clinic la Jolla ASC in La Jolla, California
Gwen Janczyk's primary practice is Scripps Clinic la Jolla ASC, at 9898 Genesee Avenue, La Jolla, CA 92037. The practice phone is (414) 975-3807.
- Scripps Clinic la Jolla ASC9898 Genesee Avenue, La Jolla, CA 92037Phone(414) 975-3807
Source: Dmand AI Affiliation Data
Gwen S. Janczyk is affiliated with 3 sites of care and 1 medical group
Gwen Janczyk's primary practice is Scripps Clinic la Jolla ASC in La Jolla, California. Gwen Janczyk is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Gwen Janczyk to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gwen S. Janczyk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gwen Janczyk practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Clinic la Jolla ASC | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Gwen S. Janczyk is one of 11,482 physician assistants in California
Physician assistant is Gwen Janczyk's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gwen Janczyk is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Gwen Janczyk is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists sleep apnea among the conditions Gwen Janczyk treats.
Physician assistants near Gwen Janczyk
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
Gwen S. Janczyk billed Medicare for 2,491 services in 2024
CMS data shows 2,491 Medicare services from Gwen Janczyk across 6 procedure codes in 2024, for 621 Medicare patients. Medicare paid $199,698 for them. Every service was in an office.
Gwen Janczyk's Medicare services by type, 2024
- Office and hospital visits1,187
- Tests and treatments953
- Other services351
Gwen Janczyk compared with the California median for physician assistants, 2024
- Gwen Janczyk
- California median
- Medicare services
- 2,491vs 20412.2 times
- Medicare patients
- 621vs 1055.9 times
- Part D claims
- 1,015vs 2434.2 times
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Gwen Janczyk'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 Gwen Janczyk?
Medicare shows one payer. Book a meeting to get commercial claims data for Gwen Janczyk and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Gwen S. Janczyk treated 621 Medicare patients in 2024, average age 77
CMS counts 621 Medicare patients who saw Gwen Janczyk in 2024. The largest group is 75 to 84, with 314 patients. 75% of them have atrial fibrillation, and 75% have high blood pressure. 2% are also on Medicaid. Their average risk score is 1.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Gwen Janczyk's median patient age at 75, with 36% women.
Gwen Janczyk's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gwen Janczyk's Medicare patients by sex, 2024
- Women22136%
- Men40064%
Chronic conditions among Gwen Janczyk's Medicare patients, 2024
- Atrial fibrillation75%
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease54%
- Heart failure41%
- Chronic kidney disease27%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Gwen Janczyk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women36%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gwen S. Janczyk wrote 1,184 Medicare Part D claims in 2024
In 2024, Gwen Janczyk wrote 1,184 Medicare Part D claims for 342 patients. 65% of them were for generic drugs. CMS names the drug for 1,015 of them, across 21 drugs with 11 or more claims each, at $410,545 in total drug cost.
Gwen Janczyk's Part D claims by kind of drug, 2024
- Generic767 claims65%
- Brand-name417 claims35%
Gwen Janczyk'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 Gwen Janczyk's Part D claims, 2024
- Antibiotics3%31 of 1,184 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
Gwen S. Janczyk offers telehealth to Medicare patients
Gwen Janczyk accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Gwen Janczyk as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Gwen S. Janczyk received $12,899 in industry payments from 2024 to 2025
CMS Open Payments shows 215 general payments to Gwen Janczyk from 26 drug and device companies from 2024 to 2025. Speaker and faculty fees make up the largest share, 48% of the total. Boston Scientific Corporation paid the most, $9,146.
General payments to Gwen Janczyk by program year, 2024 to 2025
General payments to Gwen Janczyk by kind, 2024 to 2025
- Speaker and faculty fees$6,20048%
- Food and beverage$5,00539%
- Travel and lodging$1,69413%
Companies that paid Gwen Janczyk the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Gwen S. Janczyk is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Gwen S. Janczyk'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Gwen S. Janczyk
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gwen S. Janczyk's NPI number?
Gwen S. Janczyk's NPI number is 1417022013. It was assigned on November 21, 2006, and it is active in the NPI Registry.
What does Gwen S. Janczyk specialize in?
Gwen S. Janczyk is a physician assistant in La Jolla, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gwen S. Janczyk practice?
Gwen Janczyk practices at 9898 Genesee Avenue, La Jolla, CA 92037. Gwen Janczyk's primary practice is Scripps Clinic la Jolla ASC in La Jolla, California. Dmand AI also links Gwen Janczyk to 1 hospital.
What is Gwen S. Janczyk's office phone number?
The practice phone on file for Gwen Janczyk is (414) 975-3807.
What is Gwen S. Janczyk's medical license number?
Gwen Janczyk holds California license PA15930.
Which hospitals is Gwen S. Janczyk affiliated with?
Gwen Janczyk is affiliated with Scripps Memorial Hospital La Jolla. Dmand AI links Gwen Janczyk to 1 more hospital.
What medical group is Gwen S. Janczyk part of?
Gwen Janczyk is linked to Scripps Clinic Medical Group.
Does Gwen S. Janczyk accept Medicare?
Yes. CMS data shows Gwen Janczyk billed Medicare for 2,491 services in 2024, and Gwen Janczyk accepts Medicare assignment.
Does Gwen S. Janczyk offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Gwen Janczyk as offering telehealth services.
How many Medicare patients does Gwen S. Janczyk see?
CMS counts 621 Medicare patients who saw Gwen Janczyk in 2024, with an average age of 77.
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Is Gwen S. Janczyk board certified?
Yes. Gwen Janczyk is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Gwen S. Janczyk bill to Medicare?
In 2024, Gwen Janczyk's most billed Medicare services were heart test or procedure (93298), office visit, established patient (99215) and care management and other visits (99443).
What drugs does Gwen S. Janczyk prescribe most?
In 2024 Medicare Part D data, Gwen Janczyk's most prescribed drugs by claims were Eliquis, Sotalol and Metoprolol Succinate.
Has Gwen S. Janczyk received payments from drug or device companies?
CMS Open Payments shows $12,899 in general payments to Gwen Janczyk from 26 companies from 2024 to 2025. The largest total came from Boston Scientific Corporation.
How long has Gwen S. Janczyk been practicing?
Gwen Janczyk graduated from medical school in 2001, 25 years ago.
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