Mary Byrne Welch, RN FNP, AOCN
Nurse Practitioner · Long Beach, CA
Mary Byrne Welch, RN FNP, AOCN is a nurse practitioner with a practice address in Long Beach, California, and NPI 1417944372, issued on Oct 5, 2005. Check the license (California RN479278, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Byrne Welch
- Credential
- RN FNP, AOCN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN479278 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2810 Long Beach BL, Long Beach, CA 90806
- Phone
- (562) 933-0961
- Enumerated
- Oct 5, 2005
- Record last updated
- Mar 2, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (560) 933-0960
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Verify Mary Byrne Welch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license RN479278Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average nurse practitioner in 2024
671 Medicare Part D claims for 128 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 53 claims were for opioids.
Most prescribed
- Dexamethasone60 claims
- Olanzapine46 claims
- Gabapentin44 claims
- Anastrozole34 claims
- Ondansetron Hcl33 claims
- Hydrocodone-Acetaminophen32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $3,203.99
45 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mary Byrne Welch among 8,223 nurse practitioner records in California
Mary Byrne Welch, RN FNP, AOCN is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2018 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Long Beach → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Sandra Ceverha, NPLong Beach, CA 908061326093600
- Carol Lynn Cunningham, F.N.P.-CLong Beach, CA 908061053590034
- Pedro Delfin, NPLong Beach, CA 908061689738759
- Maha Gharibeh Reed, NPLong Beach, CA 908061881640456
- Leigh Hunter, N.PLong Beach, CA 908061265503510
- Linda Kerr, NPLong Beach, CA 908061346268430
- Jill Maiten, NURSE PRACTITIONERLong Beach, CA 908061063591576
- Stacy Parker Byone, NURSE PRACTITIONERLong Beach, CA 908061124202361
Common questions
What is Mary Byrne Welch, RN FNP, AOCN's NPI number?
Mary Byrne Welch, RN FNP, AOCN's National Provider Identifier (NPI) is 1417944372, issued on Oct 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary Byrne Welch, RN FNP, AOCN located?
The NPPES record lists a practice address at 2810 Long Beach BL, Long Beach, CA, 90806. Phone: (562) 933-0961. Providers update this record themselves, so call before visiting.
How can I verify Mary Byrne Welch, RN FNP, AOCN's license?
NPPES lists California license number RN479278, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Byrne Welch, RN FNP, AOCN prescribe under Medicare Part D?
In 2024, Mary Byrne Welch, RN FNP, AOCN had 671 Medicare Part D claims for 128 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.