Alyssa Lyn Gregorec, PA
- Part D claims, 2024
- 263
- Hospital affiliations
- 1
- Industry payments
- $2,045
- Medical group
- 1
- Year NPI issued
- 2022
- Practice address
- 24451 Health Center Drive, Laguna Hills, CA 92653
- Practice phone
- Call (949) 837-4500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Alyssa Gregorec'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.
Alyssa Lyn Gregorec is a physician assistant in Laguna Hills, California
Alyssa Gregorec practices at MemorialCare Saddleback Medical Center in Laguna Hills, California, part of MemorialCare Health System.
Alyssa Gregorec's NPI, 1992432520, was assigned on August 3, 2022.
- NPI
- 1992432520NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113408980
- NPI enumeration date
- August 3, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 837-4500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Alyssa Lyn Gregorec practices at MemorialCare Saddleback Medical Center in Laguna Hills, California
Alyssa Gregorec's primary practice is MemorialCare Saddleback Medical Center, at 24451 Health Center Drive, Laguna Hills, CA 92653 in Orange County. The practice phone is (949) 837-4500.
- MemorialCare Saddleback Medical Center24451 Health Center Drive, Laguna Hills, CA 92653 · Orange CountyPhone(949) 837-4500
Source: Dmand AI Affiliation Data
Alyssa Lyn Gregorec is affiliated with 2 sites of care and 1 medical group
Alyssa Gregorec's primary practice is MemorialCare Saddleback Medical Center in Laguna Hills, California, part of MemorialCare Health System. The medical group on file is Saddleback Pulmonary Associates (SPA). Dmand AI also links Alyssa Gregorec to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Alyssa Lyn Gregorec's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Alyssa Gregorec practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MemorialCare Saddleback Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across MemorialCare Health System and 6.2K+ hospitals, with verified contacts in the same login.
Alyssa Lyn Gregorec is one of 11,482 physician assistants in California
Physician assistant is Alyssa Gregorec's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Alyssa Gregorec
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
Alyssa Lyn Gregorec's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Alyssa Gregorec's median patient age at 78, with 30% women.
Alyssa Gregorec's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women30%
- Men70%
Source: Dmand AI Patient Panel Data
Alyssa Lyn Gregorec wrote 263 Medicare Part D claims in 2024
In 2024, Alyssa Gregorec wrote 263 Medicare Part D claims for 110 patients. 66% of them were for generic drugs. CMS names the drug for 140 of them, across 8 drugs with 11 or more claims each, at $24,945 in total drug cost.
Alyssa Gregorec's Part D claims by kind of drug, 2024
- Generic173 claims66%
- Brand-name90 claims34%
Alyssa Gregorec'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 Alyssa Gregorec's Part D claims, 2024
- Antibiotics11%30 of 263 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 Alyssa Lyn Gregorec takes part in Medicare
Alyssa Gregorec 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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Alyssa Lyn Gregorec received $2,045 in industry payments from 2024 to 2025
CMS Open Payments shows 82 general payments to Alyssa Gregorec from 14 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 97% of the total. GlaxoSmithKline, LLC. paid the most, $588.
General payments to Alyssa Gregorec by program year, 2024 to 2025
General payments to Alyssa Gregorec by kind, 2024 to 2025
- Food and beverage$1,98897%
- Education$573%
Companies that paid Alyssa Gregorec the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Alyssa Lyn Gregorec'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 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 Alyssa Lyn Gregorec
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Alyssa Lyn Gregorec's NPI number?
Alyssa Lyn Gregorec's NPI number is 1992432520. It was assigned on August 3, 2022, and it is active in the NPI Registry.
What does Alyssa Lyn Gregorec specialize in?
Alyssa Lyn Gregorec is a physician assistant in Laguna Hills, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Alyssa Lyn Gregorec practice?
Alyssa Gregorec practices at 24451 Health Center Drive, Laguna Hills, CA 92653. Alyssa Gregorec's primary practice is MemorialCare Saddleback Medical Center in Laguna Hills, California, part of MemorialCare Health System. Dmand AI also links Alyssa Gregorec to 1 group practice or clinic.
What is Alyssa Lyn Gregorec's office phone number?
The practice phone on file for Alyssa Gregorec is (949) 837-4500.
Which hospitals is Alyssa Lyn Gregorec affiliated with?
Alyssa Gregorec practices at MemorialCare Saddleback Medical Center in Laguna Hills, California.
What medical group is Alyssa Lyn Gregorec part of?
Alyssa Gregorec is linked to Saddleback Pulmonary Associates (SPA).
Does Alyssa Lyn Gregorec accept Medicare?
Yes. CMS lists Alyssa Gregorec as accepting Medicare assignment.
What drugs does Alyssa Lyn Gregorec prescribe most?
In 2024 Medicare Part D data, Alyssa Gregorec's most prescribed drugs by claims were Eszopiclone, Prednisone and Breo Ellipta.
Has Alyssa Lyn Gregorec received payments from drug or device companies?
CMS Open Payments shows $2,045 in general payments to Alyssa Gregorec from 14 companies from 2024 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Alyssa Lyn Gregorec been practicing?
Alyssa Gregorec graduated from medical school in 2022, 4 years ago.
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