Darren T. Herzog, MD
Orthopaedic Surgery Physician · Flagstaff, AZ
Darren T. Herzog, MD is an orthopaedic surgery physician with a practice address in Flagstaff, Arizona, and NPI 1710119953, issued on Aug 21, 2009. Check the license (Arizona 75684, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Darren T. Herzog
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 75684 AZ
4301092372 MI
50222 MT
MED-PHYS-LIC-50222 MT
Self-reported in NPPES; status is on the state search - Practice location
- 107 E Oak Ave Ste 101, Flagstaff, AZ 86001
- Phone
- (928) 779-7880
- Enumerated
- Aug 21, 2009
- Record last updated
- Feb 6, 2025
- Fax
- (928) 779-7895
- Medicare enrollment
- Enrolled (PECOS I20250103000569); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 462 in Arizona → Look up another NPI →
Verify Darren T. Herzog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 75684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
207 Medicare Part D claims for 63 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 100 claims were for opioids.
Most prescribed
- Oxycodone Hcl57 claims
- Gabapentin51 claims
- Celecoxib44 claims
- Hydrocodone-Acetaminophen36 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: $141.26
1 payment: food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 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
- Northern Arizona Healthcare CorporationFlagstaff, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darren T. Herzog among 462 orthopaedic surgery physician records in Arizona
Darren T. Herzog, MD is one of 462 orthopaedic surgery physician records with a practice address in Arizona. 76% 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 64% of them.
- NPI issued2009 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2006 · median 2003 among the 281 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Arizona
There are 462 orthopaedic surgery physician records in Arizona.
All 462 in Arizona → Every provider in Flagstaff → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Timothy Bonatus, MDFlagstaff, AZ 860011023089646
- Torey Botti, M.D.Flagstaff, AZ 860011952348237
- Bourck Cashmore, MDFlagstaff, AZ 860011225009707
- Brandon Clark, DOFlagstaff, AZ 860011174844138
- Stuart Davis, M.D.Flagstaff, AZ 860011053321158
- Scott Gibson, DOFlagstaff, AZ 860011750513461
- Dana Hasten, FNPFlagstaff, AZ 860011174653638
- Jason Labrie, D.O.Flagstaff, AZ 860011376740852
Common questions
What is Darren T. Herzog, MD's NPI number?
Darren T. Herzog, MD's National Provider Identifier (NPI) is 1710119953, issued on Aug 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Darren T. Herzog, MD located?
The NPPES record lists a practice address at 107 E Oak Ave Ste 101, Flagstaff, AZ, 86001. Phone: (928) 779-7880. Providers update this record themselves, so call before visiting.
How can I verify Darren T. Herzog, MD's license?
NPPES lists Arizona license number 75684, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Darren T. Herzog, MD prescribe under Medicare Part D?
In 2024, Darren T. Herzog, MD had 207 Medicare Part D claims for 63 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.