Barbara Andrea Diaz Hernandez, MD
Psychiatry Physician · Hastings, MI
Barbara Andrea Diaz Hernandez, MD is a psychiatry physician with a practice address in Hastings, Michigan, and NPI 1366486961, issued on Jun 15, 2006. Check the license (Michigan 4301064824, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Barbara Andrea Diaz Hernandez
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 4301064824 MI
5690 PR
Self-reported in NPPES; status is on the state search - Practice location
- 500 Barfield Dr, Hastings, MI 49058
- Phone
- (269) 948-8041
- Enumerated
- Jun 15, 2006
- Record last updated
- May 24, 2022
- Medicare enrollment
- Enrolled (PECOS I20170321002258); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,729 in Michigan → Look up another NPI →
Also registered at 500 Barfield Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle AndersonPeer Specialist1164285656
- Cheyenne BallardCase Manager/Care Coordinator1265266399
- Rikki BarnesCommunity Health Worker1801663471
- Jade Barrera-WilderCase Manager/Care Coordinator1699426841
- Barbara BealCounselor1811743453
- Sheryl BerryPeer Specialist1114540226
Verify Barbara Andrea Diaz Hernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301064824Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% more Medicare Part D claims than the average psychiatry physician in 2024
1,895 Medicare Part D claims for 62 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Oxcarbazepine135 claims
- Trazodone Hcl122 claims
- Vilazodone Hcl113 claims
- Paliperidone Er86 claims
- Quetiapine Fumarate84 claims
- Clozapine82 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
- Barry County Community Mental Health AuthorityHastings, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Barbara Andrea Diaz Hernandez among 1,729 psychiatry physician records in Michigan
Barbara Andrea Diaz Hernandez, 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
- Graduated1978 · median 2005 among the 828 with a school on file
- Record last updated2022 · 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 Hastings → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Almario Garaza, MDHastings, MI 490581437111937
- Gretchen Barnas, M.D.Kalamazoo, MI 490481013124114
- David Dunstone, M.D.Kalamazoo, MI 490481164491742
- Joseph Gluski, M.D.Marshall, MI 490681750481552
- Sidney Heisler, MDMarshall, MI 490681194740118
- Iqbal Hussain, MDKalamazoo, MI 490481467655621
- Shobhana Joshi, MDMarshall, MI 490681073825188
- Servando Kuizon, MDMarshall, MI 490681447478557
Common questions
What is Barbara Andrea Diaz Hernandez, MD's NPI number?
Barbara Andrea Diaz Hernandez, MD's National Provider Identifier (NPI) is 1366486961, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Barbara Andrea Diaz Hernandez, MD located?
The NPPES record lists a practice address at 500 Barfield Dr, Hastings, MI, 49058. Phone: (269) 948-8041. Providers update this record themselves, so call before visiting.
How can I verify Barbara Andrea Diaz Hernandez, MD's license?
NPPES lists Michigan license number 4301064824, 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 Barbara Andrea Diaz Hernandez, MD prescribe under Medicare Part D?
In 2024, Barbara Andrea Diaz Hernandez, MD had 1,895 Medicare Part D claims for 62 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.