Diemthanh Hong Do, NP
Family Nurse Practitioner · Vacaville, CA
Diemthanh Hong Do, NP is a family nurse practitioner with a practice address in Vacaville, California, and NPI 1205066776, issued on Jul 20, 2009. Check the license (California 18794, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diemthanh Hong Do
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 18794 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Butcher RD, Vacaville, CA 95687
- Phone
- (707) 359-2255
- Enumerated
- Jul 20, 2009
- Record last updated
- Mar 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 200 Butcher RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Diemthanh Hong Do in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family nurse practitioner in 2024
26 Medicare Part D claims for 12 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.
Diemthanh Hong Do among 16,966 family nurse practitioner records in California
Diemthanh Hong Do, NP 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 2009, is newer than 15% of them.
- NPI issued2009 · 15% of these records are older, 83% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2010 · 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).
36 family nurse practitioner records list a practice address in Vacaville
They are 36 of the 1,903 NPPES records with a practice address in Vacaville, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Vacaville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Victoria Anthony, FNPVacaville, CA 956871255522140
- Marissa Boyd, MSN, RN, FNPVacaville, CA 956871750548608
- Marina Bradley, ARNPVacaville, CA 956871710311337
- Sherman Champen, RN, MSN, FNPVacaville, CA 956871528250321
- Melissa Croumie Hall, FNPVacaville, CA 956871316018088
- Mary GarofaloVacaville, CA 956871255731915
- Jienelle Herndon, FNP-CVacaville, CA 956871629443262
- Dana Littlepage, FNPVacaville, CA 956871376753582
Common questions
What is Diemthanh Hong Do, NP's NPI number?
Diemthanh Hong Do, NP's National Provider Identifier (NPI) is 1205066776, issued on Jul 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Diemthanh Hong Do, NP located?
The NPPES record lists a practice address at 200 Butcher RD, Vacaville, CA, 95687. Phone: (707) 359-2255. Providers update this record themselves, so call before visiting.
How can I verify Diemthanh Hong Do, NP's license?
NPPES lists California license number 18794, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Diemthanh Hong Do, NP prescribe under Medicare Part D?
In 2024, Diemthanh Hong Do, NP had 26 Medicare Part D claims for 12 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.