NPPES file of Aug 9, 2026

Erin Folsom, D.O.

Internal Medicine Physician · Glendale, AZ

Erin Folsom, D.O. is an internal medicine physician with a practice address in Glendale, Arizona, and NPI 1083041792, issued on Sep 26, 2013. Check the license (Arizona 007153, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083041792
Name
Erin Folsom
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
007153 AZ
Self-reported in NPPES; status is on the state search
Practice location
5555 W Thunderbird RD, Glendale, AZ 85306
Phone
(602) 865-6400
Enumerated
Sep 26, 2013
Record last updated
Aug 7, 2024
Medicare enrollment
Enrolled (PECOS I20170417001446); accepts Medicare assignment
Medical or professional school
Arizona College Of Osteopathic Medicine Mid Western University, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5555 W Thunderbird RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Dareen AlliePhysical Therapy Assistant1487504627
  2. Alicia Anderson, DOEmergency Medicine Physician1841866712
  3. Brian Baird, DOHospitalist Physician1174012397
  4. Lily Batchelor, NNP-BCNeonatal Nurse Practitioner1851065189
  5. Kayla BerryFamily Nurse Practitioner1063380442
  6. Michael Best, M.D., MPHHospitalist Physician1508251174

Verify Erin Folsom in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 007153
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

165 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Erin Folsom165
  2. Specialty average3,176

Most prescribed

  1. Metoprolol Tartrate15 claims
  2. Atorvastatin Calcium11 claims
  3. Oxycodone Hcl11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 92.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%66.9
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Banner Hospital Based Physicians Arizona LLCGlendale, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Erin Folsom among 2,853 internal medicine physician records in Arizona

Erin Folsom, D.O. 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 2013, is newer than 66% of them.

  • NPI issued2013 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2013 · median 2003 among the 1,643 with a school on file
  • Record last updated2024 · 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).

90 internal medicine physician records list a practice address in Glendale

They are 90 of the 5,447 NPPES records with a practice address in Glendale, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Charles Abrams, MDGlendale, AZ 853061447246764
  2. Shahram Asadi, DOGlendale, AZ 853061518937507
  3. George Aviles, MDGlendale, AZ 853061114914843
  4. James Carpenter, MDGlendale, AZ 853061073513131
  5. Lee Frankel, MDGlendale, AZ 853061871585836
  6. Raad Hindosh, MDGlendale, AZ 853061972590818
  7. Tony Lee, DOGlendale, AZ 853061497753123
  8. Joel Metelits, MDGlendale, AZ 853061861493439

Common questions

What is Erin Folsom, D.O.'s NPI number?

Erin Folsom, D.O.'s National Provider Identifier (NPI) is 1083041792, issued on Sep 26, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Erin Folsom, D.O. located?

The NPPES record lists a practice address at 5555 W Thunderbird RD, Glendale, AZ, 85306. Phone: (602) 865-6400. Providers update this record themselves, so call before visiting.

How can I verify Erin Folsom, D.O.'s license?

NPPES lists Arizona license number 007153, 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 Erin Folsom, D.O. prescribe under Medicare Part D?

In 2024, Erin Folsom, D.O. had 165 Medicare Part D claims for 67 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Erin Folsom, D.O.'s MIPS final score?

The 2023 MIPS final score is 92.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.