Colby Nielsen, MD
Orthopaedic Surgery Physician · Phoenix, AZ
Colby Nielsen, MD is an orthopaedic surgery physician with a practice address in Phoenix, Arizona, and NPI 1093418170, issued on Mar 27, 2023. Check the license (Arizona 390200000X, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Colby Nielsen
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 390200000X AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1111 E Mcdowell RD, Phoenix, AZ 85006
- Phone
- (602) 839-2000
- Enumerated
- Mar 27, 2023
- Record last updated
- Mar 27, 2023
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 462 in Arizona → Look up another NPI →
Also registered at 1111 E Mcdowell RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Colby Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 390200000XCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
51 Medicare Part D claims for 31 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Oxycodone Hcl21 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: $908.84
11 payments; by number, the most common kind was 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.
Colby Nielsen among 462 orthopaedic surgery physician records in Arizona
Colby Nielsen, 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 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 4% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2023 · 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 Phoenix → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Daniel Aschenbrener, D.O.Phoenix, AZ 850061386600955
- Robert Bess, MDPhoenix, AZ 850061841380474
- Gregory Grant, M.D.Phoenix, AZ 850061699711838
- Jordan HendersonPhoenix, AZ 850061538956727
- Dana Jamison, M.D.Phoenix, AZ 850061124117585
- Michael McKee, M.D.Phoenix, AZ 850061801056015
- Bridget Ralston-Ripple, MDPhoenix, AZ 850061003445792
- Glen Bair, M.D.Phoenix, AZ 850081417907114
Common questions
What is Colby Nielsen, MD's NPI number?
Colby Nielsen, MD's National Provider Identifier (NPI) is 1093418170, issued on Mar 27, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Colby Nielsen, MD located?
The NPPES record lists a practice address at 1111 E Mcdowell RD, Phoenix, AZ, 85006. Phone: (602) 839-2000. Providers update this record themselves, so call before visiting.
How can I verify Colby Nielsen, MD's license?
NPPES lists Arizona license number 390200000X, 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 Colby Nielsen, MD prescribe under Medicare Part D?
In 2024, Colby Nielsen, MD had 51 Medicare Part D claims for 31 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.