Chelsea Nicole Marshall, MD
Internal Medicine Physician · Scottsdale, AZ
Chelsea Nicole Marshall, MD is an internal medicine physician with a practice address in Scottsdale, Arizona, and NPI 1518549666, issued on Apr 27, 2021. Check the license (Arizona R78728, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Chelsea Nicole Marshall
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R78728 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 13400 E Shea Blvd, Scottsdale, AZ 85259
- Phone
- (480) 301-8000
- Enumerated
- Apr 27, 2021
- Record last updated
- Aug 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 13400 E Shea Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chelsea Nicole Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license R78728Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
169 Medicare Part D claims for 55 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium14 claims
- Losartan Potassium12 claims
- Rosuvastatin Calcium11 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.
Chelsea Nicole Marshall among 2,853 internal medicine physician records in Arizona
Chelsea Nicole Marshall, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 84% of them.
- NPI issued2021 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2021 · 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 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
344 internal medicine physician records list a practice address in Scottsdale
They are 344 of the 11,008 NPPES records with a practice address in Scottsdale, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Scottsdale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Hanson, M.D.Scottsdale, AZ 852591417939828
- Michael Hayden, MDScottsdale, AZ 852591265428395
- Stephanie Hines, MDScottsdale, AZ 852591710976444
- Erum Jadoon, MDScottsdale, AZ 852591720071749
- Bruce Kimbel, M.D.Scottsdale, AZ 852591568444321
- Steven Krotzer, M.D.Scottsdale, AZ 852591972585354
- Frank Maguire, M.D.Scottsdale, AZ 852591659374189
- Pasquale Palumbo, M.D.Scottsdale, AZ 852591700869088
Common questions
What is Chelsea Nicole Marshall, MD's NPI number?
Chelsea Nicole Marshall, MD's National Provider Identifier (NPI) is 1518549666, issued on Apr 27, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea Nicole Marshall, MD located?
The NPPES record lists a practice address at 13400 E Shea Blvd, Scottsdale, AZ, 85259. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Chelsea Nicole Marshall, MD's license?
NPPES lists Arizona license number R78728, 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 Chelsea Nicole Marshall, MD prescribe under Medicare Part D?
In 2024, Chelsea Nicole Marshall, MD had 169 Medicare Part D claims for 55 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.