John A. Baker, MD
Psychiatry Physician · Lansing, MI
John A. Baker, MD is a psychiatry physician with a practice address in Lansing, Michigan, and NPI 1548225519, issued on Apr 20, 2006. Check the license (Michigan 4301051530, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- John A. Baker
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 4301051530 MI
Self-reported in NPPES; status is on the state search - Practice location
- 812 E Jolly RD, Lansing, MI 48910
- Phone
- (517) 346-8306
- Enumerated
- Apr 20, 2006
- Record last updated
- Jun 9, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (517) 346-8291
- Medicaid ID
- 101990665 MI
- Medicare enrollment
- Enrolled (PECOS I20040331000126); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1987
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,729 in Michigan → Look up another NPI →
Also registered at 812 E Jolly RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Leah AlfredStudent in an Organized Health Care Education/Training Program1831999614
- Lisa AliceaClinical Social Worker1144282625
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Verify John A. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301051530Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% more Medicare Part D claims than the average psychiatry physician in 2024
1,235 Medicare Part D claims for 86 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 35 claims were for opioids.
Most prescribed
- Trazodone Hcl103 claims
- Clonazepam73 claims
- Citalopram Hbr72 claims
- Gabapentin65 claims
- Mirtazapine51 claims
- Alprazolam47 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: $332.58
17 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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
- Edward W Sparrow Hospital AssociationLansing, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John A. Baker among 1,729 psychiatry physician records in Michigan
John A. Baker, MD is one of 1,729 psychiatry physician records with a practice address in Michigan. 69% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 63% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1987 · median 2005 among the 828 with a school on file
- Record last updated2017 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Michigan
There are 1,729 psychiatry physician records in Michigan.
All 1,729 in Michigan → Every provider in Lansing → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Louis AnstettLansing, MI 489101144282658
- Krishna Girgis, D.O.Lansing, MI 489101710412457
- Frederick Hambly, MDLansing, MI 489101326004292
- Jimmie Harris, DOLansing, MI 489101578539128
- Anita Iype, D.O.Lansing, MI 489101639598907
- Carol Leader, DOLansing, MI 489101659337301
- Breeona Namukowa, MDLansing, MI 489101972189884
- Linda Peterson, MDLansing, MI 489101619091873
Common questions
What is John A. Baker, MD's NPI number?
John A. Baker, MD's National Provider Identifier (NPI) is 1548225519, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John A. Baker, MD located?
The NPPES record lists a practice address at 812 E Jolly RD, Lansing, MI, 48910. Phone: (517) 346-8306. Providers update this record themselves, so call before visiting.
How can I verify John A. Baker, MD's license?
NPPES lists Michigan license number 4301051530, 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 John A. Baker, MD prescribe under Medicare Part D?
In 2024, John A. Baker, MD had 1,235 Medicare Part D claims for 86 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.