Emily Spahr Cahill, D.O.
Family Medicine Physician · Santa Ana, CA
Emily Spahr Cahill, D.O. is a family medicine physician with a practice address in Santa Ana, California, and NPI 1346237948, issued on Sep 29, 2005. Check the license (California 20A11467, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Emily Spahr Cahill
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A11467 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1900 E 4TH St, Santa Ana, CA 92705
- Phone
- (888) 988-2800
- Enumerated
- Sep 29, 2005
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1900 E 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Emily Spahr Cahill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average family medicine physician in 2024
2,489 Medicare Part D claims for 1,784 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 232 claims were for opioids.
Most prescribed
- Atorvastatin Calcium204 claims
- Hydrocodone-Acetaminophen131 claims
- Amlodipine Besylate104 claims
- Levothyroxine Sodium102 claims
- Losartan Potassium78 claims
- Lisinopril70 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.
Emily Spahr Cahill among 17,133 family medicine physician records in California
Emily Spahr Cahill, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
177 family medicine physician records list a practice address in Santa Ana
They are 177 of the 8,904 NPPES records with a practice address in Santa Ana, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Ana → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ani Atoian, MDSanta Ana, CA 927051174743504
- Thomas Badin, M.D.Santa Ana, CA 927051740358704
- Judy Cheng-Chen, M.D.Santa Ana, CA 927051982786521
- Shahriar Davari, M.D.Santa Ana, CA 927051386862001
- Darrel Hopkins, D.O.Santa Ana, CA 927051033204318
- Daniel Jimenez, MDSanta Ana, CA 927051255466801
- Kent Lehman, M.D.Santa Ana, CA 927051346253812
- Fernando Martinez, M.D.Santa Ana, CA 927051962591198
Common questions
What is Emily Spahr Cahill, D.O.'s NPI number?
Emily Spahr Cahill, D.O.'s National Provider Identifier (NPI) is 1346237948, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Emily Spahr Cahill, D.O. located?
The NPPES record lists a practice address at 1900 E 4TH St, Santa Ana, CA, 92705. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify Emily Spahr Cahill, D.O.'s license?
NPPES lists California license number 20A11467, 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 Emily Spahr Cahill, D.O. prescribe under Medicare Part D?
In 2024, Emily Spahr Cahill, D.O. had 2,489 Medicare Part D claims for 1,784 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.