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DR. MARK G HERTZBERG M.D.
NPI 1497739080
Internal Medicine in Novi, MI

Active since December 06, 2005Opted out of Medicare · through Jan 1, 2028CLIA 23D0671668 · Waiver
44150 12 MILE ROAD, SUITE 100, NOVI, MI 48377(248) 347-5800 Get Directions Write a Review

NPPES record last updated: September 19, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark G Hertzberg M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK G HERTZBERG M.D. (NPI 1497739080) is an individual internal medicine provider in Novi, Michigan, licensed in Michigan (4301036759) and active in the NPI registry since December 2005. He has opted out of Medicare through January 1, 2028 and remains eligible to order and refer and holds a CLIA Waiver certificate valid through April 11, 2027.

NPPES Registry Identity

NPI1497739080
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK G HERTZBERGCredential: M.D.
Location Address44150 12 MILE ROAD, SUITE 100Novi, MI 48377
Mailing Address44150 12 Mile Road, Suite 100Novi, MI 48377 · (248) 347-5800
Phone(248) 347-5800
Sole ProprietorNo
Enumeration DateDecember 6, 2005
Last NPPES UpdateSeptember 19, 2008
✔ NPI 1497739080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 4301036759
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
44150 12 MILE ROAD, Novi, MI 48377
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Other Identifiers 5

Other1106314532MI · Blue Cross
Medicare PIN0P61570MI
Medicare PIN0M55750MI
Other06314532MI · Bcbs Individual
Medicare UPINB43383MI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

Dr. Mark G Hertzberg M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2012 through January 1, 2028.

Opt-Out Effective DateJanuary 1, 2012
Opt-Out In Effect ThroughJanuary 1, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 23D0671668

Mark Hertzberg MD PC · Novi, MI
Active · expires Apr 11, 2027
CLIA Number23D0671668
Laboratory TypePhysician Office
Certificate Effective DateApril 12, 2025
Certificate Expiration DateApril 11, 2027
Laboratory DirectorMark G. Hertzberg
Laboratory Phone(248) 357-3220
Laboratory LocationMark Hertzberg MD PC44150 12 Mile Road Suite 100, Novi, MI 48377
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48377 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.28 typical visit price
range $58.04 – $177.36
Typical copayment $33.57 (range $14.51 – $44.34)
Most-billed visit code 99204
Established Patient
$102.35 typical visit price
range $18.32 – $143.49
Typical copayment $25.58 (range $4.58 – $35.87)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier12 claims12 services$214.05 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Hertzberg's NPI number?

The NPI number for Mark Hertzberg is 1497739080. It was assigned to this individual provider in the NPPES registry on December 6, 2005.

Where is Mark Hertzberg located?

Mark Hertzberg practices at 44150 12 Mile Road Suite 100, Novi, MI 48377. The listed phone number is (248) 347-5800.

What is Mark Hertzberg's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Hertzberg enrolled in Medicare?

No. Mark Hertzberg has opted out of Medicare through January 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Does Mark Hertzberg hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 23D0671668) is associated with this NPI, valid through April 11, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Mark Hertzberg was last updated on September 19, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.