Daniel Hartley, RN, MSN, NP
NPI 1891856654 · Family Nurse Practitioner · Fairfield, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Hartley, RN, MSN, NP is a Family Nurse Practitioner provider in Fairfield, CA (NPI 1891856654).
Provider details
- NPI number
- 1891856654
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, MSN, NP
- Sex
- Male
- Sole proprietor
- No
- License
- RN523252 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
411 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 257 | $78 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 49 | $187 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $88 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 31 | $160 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $124 |
| Replacement of Thigh Bone and Hip Joint With Prosthesis |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 85 | 47 |
| Celecoxib | 66 | 29 |
| Diclofenac Sodium | 40 | 17 |
| Oxycodone Hcl | 33 | 20 |
| Ondansetronbrand: Ondansetron Odt | 31 | 29 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 27 | 24 |
| Meloxicam | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$75 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-13
- Last updated
- 2008-12-31
Frequently asked questions
- What is Daniel Hartley's NPI number?
- Daniel Hartley's National Provider Identifier (NPI) is 1891856654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Hartley's specialty?
- Daniel Hartley is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Daniel Hartley located?
- Daniel Hartley's practice location on file with NPPES is 1200 B Gale Wilson Blvd, Fairfield, CA 94533-3552.
- What is Daniel Hartley's phone number?
- The practice phone number listed in the NPPES registry for Daniel Hartley is (707) 864-5383.
- Does Daniel Hartley accept Medicare?
- Daniel Hartley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Hartley's NPI active?
- Yes — Daniel Hartley's NPI (1891856654) is active in the NPPES registry as of the last update on 2008-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.