NPPES file of Aug 9, 2026

Daniel John Hartley, RN, MSN, NP

Family Nurse Practitioner · Fairfield, CA

Daniel John Hartley, RN, MSN, NP is a family nurse practitioner with a practice address in Fairfield, California, and NPI 1891856654, issued on Dec 13, 2006. Check the license (California NP 15794, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891856654
Name
Daniel John Hartley
Credential
RN, MSN, NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
NP 15794 CA
RN523252 CA
Self-reported in NPPES; status is on the state search
Practice location
1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone
(707) 864-5383
Enumerated
Dec 13, 2006
Record last updated
Dec 31, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140725001901); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 1200 B Gale Wilson Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yusuf Ahmad, MDAnesthesiology Physician1104020262
  2. Tashira AlexanderRegistered Dietitian1902732480
  3. Nail Amro, M.D.Internal Medicine Physician1861413551
  4. Allan Au, M.D.Hospitalist Physician1427495563
  5. Erin Berntsen, ACNPAcute Care Nurse Practitioner1205640489
  6. Neeta BhasinCritical Care Pharmacist1457984882

Verify Daniel John Hartley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NP 15794    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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69% fewer Medicare Part D claims than the average family nurse practitioner in 2024

411 Medicare Part D claims for 126 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 150 claims were for opioids.

  1. Daniel Hartley411
  2. Specialty average1,305

Most prescribed

  1. Hydrocodone-Acetaminophen85 claims
  2. Celecoxib66 claims
  3. Diclofenac Sodium40 claims
  4. Oxycodone Hcl33 claims
  5. Ondansetron Odt31 claims
  6. Sulfamethoxazole-Trimethoprim27 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: $75.18

3 payments; by number, the most common kind was food and beverage; the largest payer was Bioventus LLC. 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.

  1. Daniel Hartley$75.18
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Northbay Health Medical FoundationVacaville, CA
  2. Northbay Physicians Surgery Center, LLCVacaville, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Daniel John Hartley among 16,966 family nurse practitioner records in California

Daniel John Hartley, RN, MSN, 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 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 93% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2005 · median 2019 among the 6,793 with a school on file
  • Record last updated2008 · 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).

52 family nurse practitioner records list a practice address in Fairfield

They are 52 of the 3,595 NPPES records with a practice address in Fairfield, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Fairfield → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Anna Marie Antonio, FNPFairfield, CA 945331811087232
  2. Marielou Belocura, MSN, APRN, BC-FNPFairfield, CA 945331164639225
  3. Sarah Bolger, RNPFairfield, CA 945331396736732
  4. Dorothy Correia, N.P.Fairfield, CA 945331215070339
  5. Kylie Harms, FNPFairfield, CA 945331023552726
  6. James Lewis, FNPFairfield, CA 945331063840247
  7. Jennifer Loveland, MSN, FNPFairfield, CA 945331689096265
  8. Maritess Morales, MSN, RN, FNP-CFairfield, CA 945331730433707

Common questions

What is Daniel John Hartley, RN, MSN, NP's NPI number?

Daniel John Hartley, RN, MSN, NP's National Provider Identifier (NPI) is 1891856654, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel John Hartley, RN, MSN, NP located?

The NPPES record lists a practice address at 1200 B Gale Wilson Blvd, Fairfield, CA, 94533. Phone: (707) 864-5383. Providers update this record themselves, so call before visiting.

How can I verify Daniel John Hartley, RN, MSN, NP's license?

NPPES lists California license number NP 15794, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Daniel John Hartley, RN, MSN, NP prescribe under Medicare Part D?

In 2024, Daniel John Hartley, RN, MSN, NP had 411 Medicare Part D claims for 126 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.