NPPES file of Aug 9, 2026

Ashley E. Mills, M.D.

Hospitalist Physician · Concord, CA

Ashley E. Mills, M.D. is a hospitalist physician with a practice address in Concord, California, and NPI 1811428006, issued on Mar 21, 2017. Check the license (California A157532, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1811428006
Name
Ashley E. Mills
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A157532 CA
Self-reported in NPPES; status is on the state search
Practice location
2700 Grant St Ste 200, Concord, CA 94520
Phone
(925) 947-3393
Enumerated
Mar 21, 2017
Record last updated
Dec 31, 2024
Medicare enrollment
Enrolled (PECOS I20250103003340); accepts Medicare assignment
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 2700 Grant St Ste 200

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

  1. Omar Al-Shuwaykh, M.DInternal Medicine Physician1275967143
  2. Vishidha BalankariHospitalist Physician1275108458
  3. Catherine CadangHospitalist Physician1598342586
  4. Yuriy DasarHospitalist Physician1720546047
  5. Jaspreet Garcha, DOHospitalist Physician1114547833
  6. Sweta Ghodasara, M.D.Hospitalist Physician1851520225

Verify Ashley E. Mills in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A157532
    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 California 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 hospitalist physician in 2024

28 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Ashley Mills28
  2. Specialty average521

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: $30.17

1 payment: food and beverage; the largest payer was Neurelis, Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ashley Mills$30.17
  2. Specialty average$494.84

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

  1. John Muir Physician NetworkConcord, CA

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

Ashley E. Mills among 3,099 hospitalist physician records in California

Ashley E. Mills, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 74% of them.

  • NPI issued2017 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2017 · median 2010 among the 2,505 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. John Chartier, M.D.Concord, CA 945201659390649
  2. Sweta Ghodasara, M.D.Concord, CA 945201851520225
  3. Kari Grabowsky, M.D.Concord, CA 945201578530218
  4. Eric Hoenig, M.D.Concord, CA 945201003939422
  5. Shamroze KhanConcord, CA 945201376936856
  6. Kristin Leonard, DOConcord, CA 945201790195089
  7. Thomas Nguyen, M.D.Concord, CA 945201669807699
  8. Jennifer O'Neill-Cha, M.D.Concord, CA 945201033479936

Common questions

What is Ashley E. Mills, M.D.'s NPI number?

Ashley E. Mills, M.D.'s National Provider Identifier (NPI) is 1811428006, issued on Mar 21, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Ashley E. Mills, M.D. located?

The NPPES record lists a practice address at 2700 Grant St Ste 200, Concord, CA, 94520. Phone: (925) 947-3393. Providers update this record themselves, so call before visiting.

How can I verify Ashley E. Mills, M.D.'s license?

NPPES lists California license number A157532, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ashley E. Mills, M.D. prescribe under Medicare Part D?

In 2024, Ashley E. Mills, M.D. had 28 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.