Fred Isaacs, M.D.
Internal Medicine Physician · Lansing, MI
Fred Isaacs, M.D. is an internal medicine physician with a practice address in Lansing, Michigan, and NPI 1487609665, issued on May 24, 2006. Check the license (Michigan 4301049674, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Fred Isaacs
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301049674 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1540 Lake Lansing RD, Lansing, MI 48912
- Phone
- (517) 913-3900
- Enumerated
- May 24, 2006
- Record last updated
- Sep 22, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (517) 913-3901
- Medicaid IDs
- 4848140 MI
4083594 MI - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 1540 Lake Lansing RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anusuya Babu, MDInternal Medicine Physician1194734806
- Irene Baker, NPNurse Practitioner1033143417
- Karen Bowman, NPNurse Practitioner1417046566
- Cynthia Boynton, M.D.Internal Medicine Physician1013969930
Verify Fred Isaacs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301049674Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Fred Isaacs among 5,735 internal medicine physician records in Michigan
Fred Isaacs, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2009 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
135 internal medicine physician records list a practice address in Lansing
They are 135 of the 5,276 NPPES records with a practice address in Lansing, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Lansing → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shahzaman Abbasi, MDLansing, MI 489121376512111
- Ovidiu Batca, MDLansing, MI 489121093761967
- Cynthia Boynton, M.D.Lansing, MI 489121013969930
- James Fletcher, MD, DPMLansing, MI 489121346214467
- Habtamu Handro, M.D.Lansing, MI 489121558316000
- Carol Lyon, M.D.Lansing, MI 489121982659090
- Harry McCoy, M.D.Lansing, MI 489121003850702
- Regina McGill, M.D.Lansing, MI 489121588604193
Common questions
What is Fred Isaacs, M.D.'s NPI number?
Fred Isaacs, M.D.'s National Provider Identifier (NPI) is 1487609665, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Fred Isaacs, M.D. located?
The NPPES record lists a practice address at 1540 Lake Lansing RD, Lansing, MI, 48912. Phone: (517) 913-3900. Providers update this record themselves, so call before visiting.
How can I verify Fred Isaacs, M.D.'s license?
NPPES lists Michigan license number 4301049674, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Fred Isaacs, M.D. prescribe under Medicare Part D?
In 2024, Fred Isaacs, M.D. had 11 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.