Isabel Charlotte Diamond Allen, DNP, FNP, RN
Family Nurse Practitioner · Carlsbad, CA
Isabel Charlotte Diamond Allen, DNP, FNP, RN is a family nurse practitioner with a practice address in Carlsbad, California, and NPI 1164190823, issued on Aug 30, 2021. Check the license (California 95029019, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabel Charlotte Diamond Allen
- Credential
- DNP, FNP, RN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 95029019 CA
95167811 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6520 Ambrosia LN Apt 1218, Carlsbad, CA 92011
- Phone
- (520) 904-5414
- Enumerated
- Aug 30, 2021
- Record last updated
- Feb 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20240917004283); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Isabel Charlotte Diamond Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95029019Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family nurse practitioner in 2024
86 Medicare Part D claims for 46 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
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: $71.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 99,489 providers of this specialty with any payment received $650.95 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.
Bills Medicare through one group practice
- Hardison Medical CorporationEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isabel Charlotte Diamond Allen among 16,966 family nurse practitioner records in California
Isabel Charlotte Diamond Allen, DNP, FNP, RN is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 62% of them.
- NPI issued2021 · 62% of these records are older, 32% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2023 · median 2019 among the 6,793 with a school on file
- Record last updated2024 · 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 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 family nurse practitioner records list a practice address in Carlsbad
They are 57 of the 3,411 NPPES records with a practice address in Carlsbad, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Carlsbad → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Julienne BaughCarlsbad, CA 920111114746088
- Anne French, FNPCarlsbad, CA 920111134691488
- Brianna Greenly, NPCarlsbad, CA 920111528712759
- Leah LofinkCarlsbad, CA 920111174475784
- Jessica Nelson, FNPCarlsbad, CA 920111265082838
- Kathleen PulcinoCarlsbad, CA 920111114337839
- Elizabeth Rice, NPCarlsbad, CA 920111902470537
- Mary LesniewskiCarlsbad, CA 920101235479718
Common questions
What is Isabel Charlotte Diamond Allen, DNP, FNP, RN's NPI number?
Isabel Charlotte Diamond Allen, DNP, FNP, RN's National Provider Identifier (NPI) is 1164190823, issued on Aug 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Isabel Charlotte Diamond Allen, DNP, FNP, RN located?
The NPPES record lists a practice address at 6520 Ambrosia LN Apt 1218, Carlsbad, CA, 92011. Phone: (520) 904-5414. Providers update this record themselves, so call before visiting.
How can I verify Isabel Charlotte Diamond Allen, DNP, FNP, RN's license?
NPPES lists California license number 95029019, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Isabel Charlotte Diamond Allen, DNP, FNP, RN prescribe under Medicare Part D?
In 2024, Isabel Charlotte Diamond Allen, DNP, FNP, RN had 86 Medicare Part D claims for 46 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.