Jennifer Kim Loomis, D.O.
Family Medicine Physician · Los Alamitos, CA
Jennifer Kim Loomis, D.O. is a family medicine physician with a practice address in Los Alamitos, California, and NPI 1215136940, issued on Jul 12, 2007. Check the license (California 2OA9418, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Kim Loomis
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2OA9418 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3801 Katella Ave, Los Alamitos, CA 90720
- Phone
- (562) 296-5528
- Enumerated
- Jul 12, 2007
- Record last updated
- Jan 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (562) 296-8770
- Medicare enrollment
- Enrolled (PECOS I20100621000849); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 3801 Katella Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jennifer Kim Loomis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 2OA9418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average family medicine physician in 2024
2,251 Medicare Part D claims for 269 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 18 claims were for opioids.
Most prescribed
- Levothyroxine Sodium134 claims
- Alendronate Sodium87 claims
- Rosuvastatin Calcium87 claims
- Atorvastatin Calcium86 claims
- Losartan Potassium85 claims
- Amlodipine Besylate84 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: $963.50
47 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Prohealth Partners, A Medical GroupLos Alamitos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Kim Loomis among 17,133 family medicine physician records in California
Jennifer Kim Loomis, 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2004 · median 2005 among the 10,652 with a school on file
- Record last updated2012 · 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).
18 family medicine physician records list a practice address in Los Alamitos
They are 18 of the 1,035 NPPES records with a practice address in Los Alamitos, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Alamitos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Andrea Brown, MDLos Alamitos, CA 907201710906706
- Daniel Chan, MDLos Alamitos, CA 907201346260908
- Jose De Souza, MDLos Alamitos, CA 907201649299637
- Sandra Goines, D.O.Los Alamitos, CA 907201790756054
- Nancy Helms, PACLos Alamitos, CA 907201407878143
- Gloria Hu, M.D.Los Alamitos, CA 907201396062279
- Gregory Kimura, MDLos Alamitos, CA 907201962421958
- Franklin Lowe, MDLos Alamitos, CA 907201629097613
Common questions
What is Jennifer Kim Loomis, D.O.'s NPI number?
Jennifer Kim Loomis, D.O.'s National Provider Identifier (NPI) is 1215136940, issued on Jul 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Kim Loomis, D.O. located?
The NPPES record lists a practice address at 3801 Katella Ave, Los Alamitos, CA, 90720. Phone: (562) 296-5528. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Kim Loomis, D.O.'s license?
NPPES lists California license number 2OA9418, 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 Jennifer Kim Loomis, D.O. prescribe under Medicare Part D?
In 2024, Jennifer Kim Loomis, D.O. had 2,251 Medicare Part D claims for 269 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.