Michael Joseph Blumenkrantz, M.D.
Nephrology Physician · Los Angeles, CA
Michael Joseph Blumenkrantz, M.D. is a nephrology physician with a practice address in Los Angeles, California, and NPI 1619984234, issued on Aug 3, 2006. Check the license (California G17734, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Joseph Blumenkrantz
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- G17734 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2080 Century Park E, Los Angeles, CA 90067
- Phone
- (310) 289-9824
- Enumerated
- Aug 3, 2006
- Record last updated
- Jul 16, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (310) 277-3659
- Medicaid ID
- 00G177341 CA
- Medicare enrollment
- Enrolled (PECOS I20110207000951); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1968
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 2080 Century Park E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Joseph Blumenkrantz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G17734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average nephrology physician in 2024
1,526 Medicare Part D claims for 71 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Rosuvastatin Calcium178 claims
- Ozempic66 claims
- Levothyroxine Sodium61 claims
- Allopurinol51 claims
- Ezetimibe44 claims
- Lisinopril38 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: $209.98
8 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Michael Joseph Blumenkrantz among 1,468 nephrology physician records in California
Michael Joseph Blumenkrantz, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1968 · median 2001 among the 1,128 with a school on file
- Record last updated2013 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Los Angeles → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Abe Green, MDLos Angeles, CA 900671649462144
- Luon Peng, DOLos Angeles, CA 900631407937105
- Arnold Felsenfeld, M.D.Los Angeles, CA 900731952411159
- Dalia Goldfarb-Waysman, M.D.Los Angeles, CA 900731699887752
- Barton Levine, M.D.Los Angeles, CA 900731508976903
- Glenn Nagami, M.D.Los Angeles, CA 900731194835827
- Marcelo Sampaio, M.D.Los Angeles, CA 900731851701221
- Dean Yamaguchi, M.D., PH.D.Los Angeles, CA 900731578516662
Common questions
What is Michael Joseph Blumenkrantz, M.D.'s NPI number?
Michael Joseph Blumenkrantz, M.D.'s National Provider Identifier (NPI) is 1619984234, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Joseph Blumenkrantz, M.D. located?
The NPPES record lists a practice address at 2080 Century Park E, Los Angeles, CA, 90067. Phone: (310) 289-9824. Providers update this record themselves, so call before visiting.
How can I verify Michael Joseph Blumenkrantz, M.D.'s license?
NPPES lists California license number G17734, 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 Michael Joseph Blumenkrantz, M.D. prescribe under Medicare Part D?
In 2024, Michael Joseph Blumenkrantz, M.D. had 1,526 Medicare Part D claims for 71 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.