Gary M. Hollander, DO
Internal Medicine Physician · Walled Lake, MI
Gary M. Hollander, DO is an internal medicine physician with a practice address in Walled Lake, Michigan, and NPI 1902896749, issued on Oct 24, 2005. Check the license (Michigan 5101012793, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gary Hollander
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 5101012793 MI
Self-reported in NPPES; status is on the state search - Practice location
- 620 N Pontiac Trl, Walled Lake, MI 48390
- Phone
- (248) 624-4511
- Enumerated
- Oct 24, 2005
- Record last updated
- Feb 23, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (248) 624-4408
- Medicare enrollment
- Enrolled (PECOS I20100916000894); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 620 N Pontiac Trl
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ross Feinman, DPMFoot & Ankle Surgery Podiatrist1952310807
- Kyle FogStudent in an Organized Health Care Education/Training Program1013364777
- Carl HendricksPharmacist1174651442
- Karen HendricksPharmacist1386772648
- Kerri HerrinPharmacy Technician1063881118
- Linda Ho, CPHTPharmacy Technician1699144584
Verify Gary Hollander in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101012793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.6 times the Medicare Part D claims of the average internal medicine physician in 2024
11,469 Medicare Part D claims for 687 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 151 claims were for opioids.
Most prescribed
- Atorvastatin Calcium585 claims
- Pantoprazole Sodium447 claims
- Rosuvastatin Calcium434 claims
- Losartan Potassium420 claims
- Levothyroxine Sodium383 claims
- Metoprolol Succinate348 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: $518.88
26 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Bills Medicare through one group practice
- Vmd Primary Providers Eastern Michigan PCNovi, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
6 internal medicine physician records list a practice address in Walled Lake
They are 6 of the 174 NPPES records with a practice address in Walled Lake, and 5,735 internal medicine physician records in Michigan.
All 6 in Walled Lake → All 5,735 in Michigan → Every provider in Walled Lake →
Other internal medicine physician records in Michigan
- Jamie Therese Abad, MDDetroit, MI1700573359
- Tomas Abalo, M.D.Iron Mountain, MI1336199975
- Ali Abbas, M.D.Pontiac, MI1972167526
- Sura Abbas, MDWarren, MI1801687405
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Valerie Abbott, MDSouthfield, MI1740289487
- Samer Abboud, MDSaginaw, MI1245804178
Common questions
What is Gary M. Hollander, DO's NPI number?
Gary M. Hollander, DO's National Provider Identifier (NPI) is 1902896749, issued on Oct 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gary M. Hollander, DO located?
The NPPES record lists a practice address at 620 N Pontiac Trl, Walled Lake, MI, 48390. Phone: (248) 624-4511. Providers update this record themselves, so call before visiting.
How can I verify Gary M. Hollander, DO's license?
NPPES lists Michigan license number 5101012793, 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 Gary M. Hollander, DO prescribe under Medicare Part D?
In 2024, Gary M. Hollander, DO had 11,469 Medicare Part D claims for 687 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.