Darren Herzog, MD
NPI 1710119953 · Orthopaedic Surgery Physician · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Herzog, MD is a Orthopaedic Surgery Physician provider in Flagstaff, AZ (NPI 1710119953).
Provider details
- NPI number
- 1710119953
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MED-PHYS-LIC-50222 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 57 | 31 |
| Gabapentin | 51 | 19 |
| Celecoxib | 44 | 22 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 36 | 25 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$141 across 1 record (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
Additional practice locations (1)
- 10 Kruger RdPlains, MT 59859Phone: (406) 826-4800Fax: (406) 826-4803
Registry dates
- Enumerated
- 2009-08-21
- Last updated
- 2025-02-06
- Certified
- 2025-02-06
Frequently asked questions
- What is Darren Herzog's NPI number?
- Darren Herzog's National Provider Identifier (NPI) is 1710119953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Herzog's specialty?
- Darren Herzog is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Herzog located?
- Darren Herzog's practice location on file with NPPES is 107 E Oak Ave Ste 101, Flagstaff, AZ 86001-1818.
- What is Darren Herzog's phone number?
- The practice phone number listed in the NPPES registry for Darren Herzog is (928) 779-7880.
- Does Darren Herzog accept Medicare?
- Darren Herzog is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Herzog's NPI active?
- Yes — Darren Herzog's NPI (1710119953) is active in the NPPES registry as of the last update on 2025-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.