Heather Lynn McIsaac, AGACNP-BC, APRN
Acute Care Nurse Practitioner · Fountain Valley, CA
Heather Lynn McIsaac, AGACNP-BC, APRN is an acute care nurse practitioner with a practice address in Fountain Valley, California, and NPI 1861022824, issued on Jan 17, 2020. Check the license (California NP95012327, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heather Lynn McIsaac
- Credential
- AGACNP-BC, APRN
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- NP95012327 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11180 Warner Ave Ste 463, Fountain Valley, CA 92708
- Phone
- (714) 241-9200
- Enumerated
- Jan 17, 2020
- Record last updated
- Jan 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 1,810 in California → Look up another NPI →
Also registered at 11180 Warner Ave Ste 463
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zavier Ahmed, M.D.Nephrology Physician1255677134
- Afsaneh Haftbaradaran Mohammadi, M.D.Nephrology Physician1902040009
- Deborah HarropFamily Nurse Practitioner1649925421
- Tarun Marwaha, M.D.Nephrology Physician1407964976
- Jeremy Pineda, NPPrimary Care Nurse Practitioner1245928209
Verify Heather Lynn McIsaac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95012327Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
230 Medicare Part D claims for 31 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Sevelamer Carbonate26 claims
- Velphoro25 claims
- Nifedipine Er24 claims
- Losartan Potassium12 claims
- Zolpidem Tartrate12 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.
Heather Lynn McIsaac among 1,810 acute care nurse practitioner records in California
Heather Lynn McIsaac, AGACNP-BC, APRN is one of 1,810 acute care nurse practitioner records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 56% of them.
- NPI issued2020 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2020 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in California
There are 1,810 acute care nurse practitioner records in California.
All 1,810 in California → Every provider in Fountain Valley → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Tina Bui, DNP, APRN, ACNPC-BCFountain Valley, CA 927081760367833
- Timothy Horttor, NPFountain Valley, CA 927081083124549
- Roxanne MartinezFountain Valley, CA 927081477951689
- Gabriela NakanoFountain Valley, CA 927081194077214
- Laura Perez-Aoki, NURSE PRACTITIONERFountain Valley, CA 927081497975262
- Henriette Hvingelby, NPSanta Ana, CA 927071942353107
- Elizabeth BransonSanta Ana, CA 927051023587516
- Renee Cortez, DNP, MSN, BSN, ACNPSanta Ana, CA 927051770629768
Common questions
What is Heather Lynn McIsaac, AGACNP-BC, APRN's NPI number?
Heather Lynn McIsaac, AGACNP-BC, APRN's National Provider Identifier (NPI) is 1861022824, issued on Jan 17, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Heather Lynn McIsaac, AGACNP-BC, APRN located?
The NPPES record lists a practice address at 11180 Warner Ave Ste 463, Fountain Valley, CA, 92708. Phone: (714) 241-9200. Providers update this record themselves, so call before visiting.
How can I verify Heather Lynn McIsaac, AGACNP-BC, APRN's license?
NPPES lists California license number NP95012327, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Heather Lynn McIsaac, AGACNP-BC, APRN prescribe under Medicare Part D?
In 2024, Heather Lynn McIsaac, AGACNP-BC, APRN had 230 Medicare Part D claims for 31 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.