Alyssa Katherine Castagna, NP
- Medicare services, 2024
- 14
- Medicare patients, 2024
- 19
- Part D claims, 2024
- 2,423
- Hospital affiliations
- 2
- Industry payments
- $51
- Practice address
- 1400 E Church St, Santa Maria, CA 93454
- Practice phone
- Call (805) 739-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Alyssa Castagna's professional email, personal email and mobile number
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Alyssa Katherine Castagna is a nurse practitioner in Santa Maria, California
Alyssa Castagna practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health.
Alyssa Castagna's NPI, 1083286249, was assigned on July 15, 2021. Alyssa Castagna holds California license 95016302.
- NPI
- 1083286249NPI Registry (opens in a new tab)
- NPI enumeration date
- July 15, 2021
- NPI status
- Active
- Practice phone
- (805) 739-3100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Alyssa Katherine Castagna practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California
Alyssa Castagna's primary practice is Dignity Health - Marian Regional Medical Center, at 1400 E Church St, Santa Maria, CA 93454 in Santa Barbara County. The practice phone is (805) 739-3100.
- Dignity Health - Marian Regional Medical Center1400 E Church St, Santa Maria, CA 93454 · Santa Barbara CountyPhone(805) 739-3100
Source: Dmand AI Affiliation Data
Alyssa Katherine Castagna is affiliated with 3 sites of care and 2 medical groups
Alyssa Castagna's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. The medical group on file is Community Health Centers of the Central Coast, Inc. Dmand AI also links Alyssa Castagna to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Alyssa Katherine Castagna's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Alyssa Castagna practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Marian Regional Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Alyssa Katherine Castagna is one of 5,983 nurse practitioners in California
Nurse practitioner is Alyssa Castagna's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Alyssa Castagna is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic diabetes, high cholesterol and psoriasis among the conditions Alyssa Castagna treats.
Nurse practitioners near Alyssa Castagna
Counts of nurse practitioners 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 Katherine Castagna billed Medicare for 14 services in 2024
CMS data shows 14 Medicare services from Alyssa Castagna across 1 procedure code in 2024, for 19 Medicare patients. Medicare paid $133 for them. Every service was in an office.
Alyssa Castagna compared with the California median for nurse practitioners, 2024
- Alyssa Castagna
- California median
- Medicare services
- 14vs 27995% below
- Medicare patients
- 19vs 9279% below
- Part D claims
- 1,771vs 3664.8 times
Medians across 3,047 nurse practitioners in California with Dmand AI profiles that report each measure.
Alyssa Castagna'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Alyssa Castagna and other nurse practitioners in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Alyssa Katherine Castagna treated 19 Medicare patients in 2024, average age 66
CMS counts 19 Medicare patients who saw Alyssa Castagna in 2024. The largest group is 85 and over, with 0 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Alyssa Castagna's median patient age at 53, with 72% women.
Alyssa Castagna's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Alyssa Castagna's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Alyssa Castagna's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women72%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Alyssa Katherine Castagna wrote 2,423 Medicare Part D claims in 2024
In 2024, Alyssa Castagna wrote 2,423 Medicare Part D claims for 493 patients. 87% of them were for generic drugs. CMS names the drug for 1,771 of them, across 52 drugs with 11 or more claims each, at $104,796 in total drug cost.
Alyssa Castagna's Part D claims by kind of drug, 2024
- Generic2,099 claims87%
- Brand-name and other324 claims13%
Alyssa Castagna'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 Castagna's Part D claims, 2024
- Opioids1%18 of 2,423 claims
- Antibiotics2%48 of 2,423 claims
- Antipsychotics, patients 65 and over0%11 of 2,423 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
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Alyssa Katherine Castagna received $51 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Alyssa Castagna from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $33.
General payments to Alyssa Castagna by program year, 2024 to 2025
Companies that paid Alyssa Castagna 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 Katherine Castagna'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) |
| 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 Katherine Castagna
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What is Alyssa Katherine Castagna's NPI number?
Alyssa Katherine Castagna's NPI number is 1083286249. It was assigned on July 15, 2021, and it is active in the NPI Registry.
What does Alyssa Katherine Castagna specialize in?
Alyssa Katherine Castagna is a nurse practitioner in Santa Maria, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Alyssa Katherine Castagna practice?
Alyssa Castagna practices at 1400 E Church St, Santa Maria, CA 93454. Alyssa Castagna's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dmand AI also links Alyssa Castagna to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Alyssa Katherine Castagna's office phone number?
The practice phone on file for Alyssa Castagna is (805) 739-3100.
What is Alyssa Katherine Castagna's medical license number?
Alyssa Castagna holds California license 95016302.
Which hospitals is Alyssa Katherine Castagna affiliated with?
Alyssa Castagna practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California. Dmand AI links Alyssa Castagna to 1 more hospital.
What medical group is Alyssa Katherine Castagna part of?
Alyssa Castagna is linked to Community Health Centers of the Central Coast, Inc. Dmand AI links Alyssa Castagna to 1 more medical group.
Does Alyssa Katherine Castagna accept Medicare?
Yes. CMS data shows Alyssa Castagna billed Medicare for 14 services in 2024.
How many Medicare patients does Alyssa Katherine Castagna see?
CMS counts 19 Medicare patients who saw Alyssa Castagna in 2024, with an average age of 66.
What services does Alyssa Katherine Castagna bill to Medicare?
In 2024, Alyssa Castagna's most billed Medicare services were lab and pathology test (83036).
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What drugs does Alyssa Katherine Castagna prescribe most?
In 2024 Medicare Part D data, Alyssa Castagna's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Alyssa Katherine Castagna received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Alyssa Castagna from 2 companies from 2024 to 2025. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Alyssa Katherine Castagna been practicing?
Alyssa Castagna graduated from medical school in 2020, 6 years ago.
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