Isabelle A Hertig, MD - Medicare Internal Medicine in Rockville, MD

Isabelle A Hertig, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in Rockville, Maryland. She graduated from medical school in 1983 and has 41 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Usacs Critical Care Medicine Services East, Llc and her current practice location is 11125 Rockville Pike, Suite 208, Rockville, Maryland. You can reach out to her office (for appointments etc.) via phone at (301) 881-5858.

Isabelle A Hertig is licensed to practice in Maryland (license number D0054068) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1013127695.

Contact Information

Isabelle A Hertig, MD
11125 Rockville Pike, Suite 208,
Rockville, MD 20852-3142
(301) 881-5858
(301) 260-2838



Physician's Profile

Full NameIsabelle A Hertig
GenderFemale
SpecialityInternal Medicine
Experience41 Years
Location11125 Rockville Pike, Rockville, Maryland
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Isabelle A Hertig graduated from medical school in 1983
  NPI Data:
  • NPI Number: 1013127695
  • Provider Enumeration Date: 05/23/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4688660749
  • Enrollment ID: I20040423000084

Medical Identifiers

Medical identifiers for Isabelle A Hertig such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013127695NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine D0054068 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Healthcare Shady Grove Medical CenterRockville, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Usacs Critical Care Medicine Services East, Llc185078344042

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Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Isabelle A Hertig allows following entities to bill medicare on her behalf.
Entity NameGaithersburg Critical Care Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144250218
PECOS PAC ID: 1658260435
Enrollment ID: O20040311000226

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Entity NameUsacs Integrated Acute Care Services Of Maryland Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922598929
PECOS PAC ID: 4486900172
Enrollment ID: O20190604001354

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Entity NameUsacs Critical Care Medicine Services East, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356007116
PECOS PAC ID: 1850783440
Enrollment ID: O20220111000917

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Isabelle A Hertig is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Isabelle A Hertig, MD
Po Box 299,
Burtonsville, MD 20866-0299

Ph: (301) 570-9700
Isabelle A Hertig, MD
11125 Rockville Pike, Suite 208,
Rockville, MD 20852-3142

Ph: (301) 881-5858

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Internal Medicine Doctors in Rockville, MD

Dr. Sheila Gay Levin, MD
Critical Care Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 14955 Shady Grove Rd, Suite 150, Rockville, MD 20850
Phone: 301-340-3252    Fax: 301-340-1423
Dr. Shubir Sofat, MD
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10110 Molecular Dr Ste 200, Rockville, MD 20850
Phone: 301-610-4000    Fax: 301-610-4007
Dr. Kajal Dasgupta, M.D.
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2101 E Jefferson St, Kaiser Permanente Medicare Enrollment, Rockville, MD 20852
Phone: 301-816-2424    
Joseph M Haggerty, M.D.
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9707 Medical Center Dr, Suite 300, Rockville, MD 20850
Phone: 301-424-6231    Fax: 301-294-4648
Dr. Wellington Sun, M.D.
Critical Care Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1401 Rockville Pike, Suite 300n, Rockville, MD 20852
Phone: 301-827-3070    Fax: 301-827-3532
Dr. Wei Fan, M.D.
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2401 Research Blvd Ste 370, Rockville, MD 20850
Phone: 240-690-4114    Fax: 240-654-3915

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