Irene Lee-Klass, MD
Family Medicine Physician · Sacramento, CA
Irene Lee-Klass, MD is a family medicine physician with a practice address in Sacramento, California, and NPI 1588984611, issued on Jun 11, 2010. Check the license (California A118610, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irene Lee-Klass
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A118610 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1201 Alhambra Blvd, Sacramento, CA 95816
- Phone
- (916) 451-4400
- Enumerated
- Jun 11, 2010
- Record last updated
- Jan 10, 2022
- Fax
- (916) 731-7955
- Medicare enrollment
- Enrolled (PECOS I20130117000423); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1201 Alhambra Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Irene Lee-Klass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118610Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average family medicine physician in 2024
3,300 Medicare Part D claims for 395 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 100 claims were for opioids.
Most prescribed
- Atorvastatin Calcium276 claims
- Losartan Potassium186 claims
- Amlodipine Besylate165 claims
- Levothyroxine Sodium109 claims
- Hydrochlorothiazide104 claims
- Lisinopril101 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.
Bills Medicare through one group practice
- Permanente Medical Group IncRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Irene Lee-Klass among 17,133 family medicine physician records in California
Irene Lee-Klass, MD 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 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).
473 family medicine physician records list a practice address in Sacramento
They are 473 of the 33,083 NPPES records with a practice address in Sacramento, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Sacramento → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lorraine Abate, M.D.Sacramento, CA 958161104840008
- Janki Amin, M.D.Sacramento, CA 958161174531263
- John Brothers, M.D.Sacramento, CA 958161275585697
- Natasha Fine, M.D.Sacramento, CA 958161477544070
- Kimette Marta, M.D.Sacramento, CA 958161912904228
- Deborah Mowe, MDSacramento, CA 958161184601783
- Albert Owens, M.D.Sacramento, CA 958161053382390
- Audrey Pan, D.O.Sacramento, CA 958161215946496
Common questions
What is Irene Lee-Klass, MD's NPI number?
Irene Lee-Klass, MD's National Provider Identifier (NPI) is 1588984611, issued on Jun 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Irene Lee-Klass, MD located?
The NPPES record lists a practice address at 1201 Alhambra Blvd, Sacramento, CA, 95816. Phone: (916) 451-4400. Providers update this record themselves, so call before visiting.
How can I verify Irene Lee-Klass, MD's license?
NPPES lists California license number A118610, 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 Irene Lee-Klass, MD prescribe under Medicare Part D?
In 2024, Irene Lee-Klass, MD had 3,300 Medicare Part D claims for 395 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.