Rosemary S. Castillo, NP
- Part D claims, 2024
- 532
- Industry payments
- $2,025
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Practice address
- 2600 Redondo Avenue, Long Beach, CA 90806
- Practice phone
- Call (562) 988-7147
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Optum Surgery Center - Long Beach
Surgery Center - Medicare-Certified · Long Beach, California
Find Rosemary Castillo'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.
Rosemary S. Castillo is a nurse practitioner in Long Beach, California
Rosemary Castillo practices at Optum Surgery Center - Long Beach in Long Beach, California.
Rosemary Castillo's NPI, 1891854519, was assigned on December 8, 2006. Rosemary Castillo holds California license NP6156.
- NPI
- 1891854519NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092858274
- NPI enumeration date
- December 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 988-7147
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Rosemary S. Castillo practices at Optum Surgery Center - Long Beach in Long Beach, California
Rosemary Castillo's primary practice is Optum Surgery Center - Long Beach, at 2600 Redondo Avenue, Long Beach, CA 90806. The practice phone is (562) 988-7147.
- Optum Surgery Center - Long Beach2600 Redondo Avenue, Long Beach, CA 90806Phone(562) 988-7147
Source: Dmand AI Affiliation Data
Rosemary S. Castillo is affiliated with 2 sites of care and 2 medical groups
Rosemary Castillo's primary practice is Optum Surgery Center - Long Beach in Long Beach, California. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Rosemary Castillo to 1 more 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 Rosemary S. Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Rosemary Castillo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Optum Surgery Center - Long Beach | Available with a free account |
| +1 more site and 1 medical group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Rosemary S. Castillo is one of 5,983 nurse practitioners in California
Nurse practitioner is Rosemary Castillo's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Rosemary Castillo is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, chronic diabetes, cold sores or genital herpes, diabetic emergency, high cholesterol, shingles, underactive thyroid and upper respiratory infection (URI) among the conditions Rosemary Castillo treats.
Nurse practitioners near Rosemary Castillo
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
Rosemary S. Castillo's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Rosemary Castillo's median patient age at 69, with 71% women.
Rosemary Castillo'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
- Women71%
- Men28%
Source: Dmand AI Patient Panel Data
Rosemary S. Castillo wrote 532 Medicare Part D claims in 2024
In 2024, Rosemary Castillo wrote 532 Medicare Part D claims for 265 patients. 88% of them were for generic drugs. CMS names the drug for 232 of them, across 14 drugs with 11 or more claims each, at $29,993 in total drug cost.
Rosemary Castillo's Part D claims by kind of drug, 2024
- Generic470 claims88%
- Brand-name and other62 claims12%
Rosemary Castillo'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 Rosemary Castillo's Part D claims, 2024
- Opioids3%18 of 532 claims
- Antibiotics4%19 of 532 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 Rosemary S. Castillo takes part in Medicare
Rosemary Castillo 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.
Rosemary S. Castillo received $2,025 in industry payments from 2024 to 2025
CMS Open Payments shows 16 general payments to Rosemary Castillo from 10 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $486.
General payments to Rosemary Castillo by program year, 2024 to 2025
Companies that paid Rosemary Castillo 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 Rosemary S. Castillo'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 Rosemary S. Castillo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Rosemary S. Castillo's NPI number?
Rosemary S. Castillo's NPI number is 1891854519. It was assigned on December 8, 2006, and it is active in the NPI Registry.
What does Rosemary S. Castillo specialize in?
Rosemary S. Castillo is a nurse practitioner in Long Beach, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Rosemary S. Castillo practice?
Rosemary Castillo practices at 2600 Redondo Avenue, Long Beach, CA 90806. Rosemary Castillo's primary practice is Optum Surgery Center - Long Beach in Long Beach, California. Dmand AI also links Rosemary Castillo to 1 group practice or clinic and 1 medical group.
What is Rosemary S. Castillo's office phone number?
The practice phone on file for Rosemary Castillo is (562) 988-7147.
What is Rosemary S. Castillo's medical license number?
Rosemary Castillo holds California license NP6156.
What medical group is Rosemary S. Castillo part of?
Rosemary Castillo is linked to Optum - Downtown Los Angeles. Dmand AI links Rosemary Castillo to 1 more medical group.
Does Rosemary S. Castillo accept Medicare?
Yes. CMS lists Rosemary Castillo as accepting Medicare assignment.
What drugs does Rosemary S. Castillo prescribe most?
In 2024 Medicare Part D data, Rosemary Castillo's most prescribed drugs by claims were Amlodipine Besylate, Eliquis and Omeprazole.
Has Rosemary S. Castillo received payments from drug or device companies?
CMS Open Payments shows $2,025 in general payments to Rosemary Castillo from 10 companies from 2024 to 2025. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Rosemary S. Castillo been practicing?
Rosemary Castillo graduated from medical school in 1992, 34 years ago.
Selling to nurse practitioner practices?
See nurse practitioners in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card