Issa Bernalin Hernaez Maslog, MD
Internal Medicine Physician · Saint Joseph, MI
Issa Bernalin Hernaez Maslog, MD is an internal medicine physician with a practice address in Saint Joseph, Michigan, and NPI 1457049264, issued on Apr 28, 2023. Check the license (Michigan 4301518466, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Issa Bernalin Hernaez Maslog
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301518466 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3950 Hollywood RD Ste 270, Saint Joseph, MI 49085
- Phone
- (269) 983-0500
- Enumerated
- Apr 28, 2023
- Record last updated
- Jul 22, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 3950 Hollywood RD Ste 270
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alexander Hinckley, D.O.Internal Medicine Physician1982049524
- Tameira KostersPhysician Assistant1780460998
- Deanna Rucano, NPNurse Practitioner1174011316
- Esther Servillas, MDInternal Medicine Physician1922418425
Verify Issa Bernalin Hernaez Maslog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301518466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
354 Medicare Part D claims for 106 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium23 claims
- Amlodipine Besylate13 claims
- Losartan Potassium12 claims
- Pantoprazole Sodium12 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: $71.69
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Issa Bernalin Hernaez Maslog among 5,735 internal medicine physician records in Michigan
Issa Bernalin Hernaez Maslog, MD 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 2023, is newer than 90% of them.
- NPI issued2023 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2026 · 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).
49 internal medicine physician records list a practice address in Saint Joseph
They are 49 of the 1,038 NPPES records with a practice address in Saint Joseph, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Saint Joseph → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kathleen Andries, MDSt Joseph, MI 490851588623276
- Sharon Deskins, M.D.Saint Joseph, MI 490851275592537
- Samraja Emerson, MDSaint Joseph, MI 490851235165093
- John Froggatt, MDSaint Joseph, MI 490851588691091
- John Gosling, MDSaint Joseph, MI 490851851387302
- Ewanah Johnson, MDSaint Joseph, MI 490851841282456
- Hany Mesiha, MDSaint Joseph, MI 490851003034455
- Sherrell O'Donnell, D.O.Saint Joseph, MI 490851699771725
Common questions
What is Issa Bernalin Hernaez Maslog, MD's NPI number?
Issa Bernalin Hernaez Maslog, MD's National Provider Identifier (NPI) is 1457049264, issued on Apr 28, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Issa Bernalin Hernaez Maslog, MD located?
The NPPES record lists a practice address at 3950 Hollywood RD Ste 270, Saint Joseph, MI, 49085. Phone: (269) 983-0500. Providers update this record themselves, so call before visiting.
How can I verify Issa Bernalin Hernaez Maslog, MD's license?
NPPES lists Michigan license number 4301518466, 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 Issa Bernalin Hernaez Maslog, MD prescribe under Medicare Part D?
In 2024, Issa Bernalin Hernaez Maslog, MD had 354 Medicare Part D claims for 106 beneficiaries; 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.