Mark G. Hertzberg, M.D.
Internal Medicine Physician · Novi, MI
Mark G. Hertzberg, M.D. is an internal medicine physician with a practice address in Novi, Michigan, and NPI 1497739080, issued on Dec 6, 2005. Check the license (Michigan 4301036759, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Mark G. Hertzberg
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301036759 MI
Self-reported in NPPES; status is on the state search - Practice location
- 44150 12 Mile Road, Novi, MI 48377
- Phone
- (248) 347-5800
- Enumerated
- Dec 6, 2005
- Record last updated
- Sep 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Verify Mark G. Hertzberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301036759Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,660 Medicare Part D claims for 267 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. 45 claims were for opioids.
Most prescribed
- Np Thyroid223 claims
- Armour Thyroid164 claims
- Amlodipine Besylate112 claims
- Colchicine81 claims
- Pravastatin Sodium70 claims
- Methylprednisolone57 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: $23.60
1 payment: food and beverage; the largest payer was Acella Pharmaceuticals, LLC. 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.
Mark G. Hertzberg among 5,735 internal medicine physician records in Michigan
Mark G. Hertzberg, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2008 · 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).
42 internal medicine physician records list a practice address in Novi
They are 42 of the 7,641 NPPES records with a practice address in Novi, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Novi → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Chadi Almhana, M,DNovi, MI 483771730464561
- James Crowl, MDNovi, MI 483771356355804
- Derek Einhorn, M.D.Novi, MI 483771801855762
- Robert Federman, M.D.Novi, MI 483771316922685
- James Golden, M.D.Novi, MI 483771548261878
- Ayesha Mahmood, M.D.Novi, MI 483771891863346
- William Murray, MD FACPNovi, MI 483771972526259
- Lowell Paul, MDNovi, MI 483771689655508
Common questions
What is Mark G. Hertzberg, M.D.'s NPI number?
Mark G. Hertzberg, M.D.'s National Provider Identifier (NPI) is 1497739080, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark G. Hertzberg, M.D. located?
The NPPES record lists a practice address at 44150 12 Mile Road, Novi, MI, 48377. Phone: (248) 347-5800. Providers update this record themselves, so call before visiting.
How can I verify Mark G. Hertzberg, M.D.'s license?
NPPES lists Michigan license number 4301036759, 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 Mark G. Hertzberg, M.D. prescribe under Medicare Part D?
In 2024, Mark G. Hertzberg, M.D. had 2,660 Medicare Part D claims for 267 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.