MARCUS JOHANNES GEER MD
NPI 1164872537
Internal Medicine - Hematology in Ann Arbor, MI

NPI Status: Active since June 16, 2016

Contact Information

1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109
Phone: (734) 936-4000

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  • Individual
  • Male
  • Years of Experience 10
  • Internal Medicine
  • Hematology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MARCUS GEER

This page provides the complete NPI Profile along with additional information for Marcus Geer, an internist established in Ann Arbor, Michigan with a medical specialization in Internal Medicine, focusing in hematology and more than 10 years of experience. He graduated from University Of Toledo College Of Medicine in 2016. The healthcare provider is registered in the NPI registry with number 1164872537 assigned on June 2016. The practitioner's primary taxonomy code is 207RH0000X with license number 4301117307 (MI). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1164872537
Provider Name
MARCUS JOHANNES GEER MD
Gender
Male
Entity Type
Individual
Location Address
1500 E MEDICAL CENTER DR ANN ARBOR, MI 48109
Location Phone
(734) 936-4000
Mailing Address
3621 S STATE ST ANN ARBOR, MI 48108
Mailing Phone
(734) 647-5299
Medical School Name
UNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduation Year
2016
Is Sole Proprietor?
No
Enumeration Date
06-16-2016
Last Update Date
08-01-2023
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An internist like Marcus Geer is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Hematology

Taxonomy Code
207RH0000X
Type
Allopathic & Osteopathic Physicians
License No.
4301117307
License State
MI
Taxonomy Description
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RH0003XAllopathic & Osteopathic Physicians

Internal Medicine
Hematology & Oncology

4301117307 (MI)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Clear Silver - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Clear Gold - HMO
  • Clear Gold + Vision + Adult Dental - HMO
  • Clear Silver - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Blue Cross� Preferred HMO Bronze Extra - HMO
  • Blue Cross� Preferred HMO Bronze Saver HSA - HMO
  • Blue Cross� Preferred HMO Bronze Secure - HMO
  • Blue Cross� Preferred HMO Gold - HMO
  • Blue Cross� Preferred HMO Gold Extra - HMO
  • Blue Cross� Preferred HMO Silver - HMO
  • Blue Cross� Preferred HMO Silver Extra - HMO
  • Blue Cross� Preferred HMO Silver Saver - HMO
  • Blue Cross� Preferred HMO Value - HMO
  • Blue Cross� Select HMO Bronze Extra - HMO
  • Blue Cross� Premier PPO Bronze Extra - PPO
  • Blue Cross� Premier PPO Bronze HSA - PPO
  • Blue Cross� Premier PPO Bronze Secure - PPO
  • Blue Cross� Premier PPO Gold - PPO
  • Blue Cross� Premier PPO Gold Extra - PPO
  • Blue Cross� Premier PPO Silver - PPO
  • Blue Cross� Premier PPO Silver Extra - PPO
  • Blue Cross� Premier PPO Silver Saver HSA - PPO
  • Blue Cross� Premier PPO Value - PPO
  • Bronze First - HMO
  • Bronze First Adult Vision & Fitness - HMO
  • Diabetes Gold - HMO
  • Diabetes Gold Adult Vision & Fitness - HMO
  • Diabetes Silver - HMO
  • Diabetes Silver Adult Vision & Fitness - HMO
  • Gold - HMO
  • Gold Adult Vision & Fitness - HMO
  • HDHP Preventive Silver - HMO
  • Healthy Heart Gold - HMO
  • MHP Bronze - HMO
  • MHP Bronze Saver (Expanded) - HMO
  • MHP Expanded Bronze Standard - HMO
  • MHP Gold - HMO
  • MHP Gold Standard - HMO
  • MHP Silver Exchange - HMO
  • MHP Silver Exchange Rewards - HMO
  • MHP Silver Standard - HMO
  • MHP Young Adult/Catastrophic - HMO
  • Gold 1 - HMO
  • Gold 1 with Adult Vision Services - HMO
  • Gold 8 - HMO
  • Silver 1 - HMO
  • Silver 1 with Adult Vision Services - HMO
  • Silver 12 with First 4 Primary Care Visits Free - HMO
  • Silver 8 - HMO
  • MyPriority Balanced Silver - HMO
  • MyPriority Premier Silver - HMO
  • MyPriority Standard Bronze - HMO
  • MyPriority Standard Bronze - Travel - HMO
  • MyPriority Standard Gold - HMO
  • MyPriority Standard Silver - HMO
  • MyPriority Standard Silver - Travel - HMO
  • MyPriority Value Bronze - HMO
  • MyPriority Value Bronze HSA - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Marcus Geer is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Marcus Geer is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 345535845

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20230803003147

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $44.34 for a new patient copayment and $25.58 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 48109 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99205

  • Average New Patient Price $177.36
  • Minimum New Patient Price $58.04
  • Maximum New Patient Price $177.36
  • Average New Patient Copayment $44.34
  • Minimum New Patient Copayment $14.51
  • Maximum New Patient Copayment $44.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $102.35
  • Minimum Established Patient Price $18.32
  • Maximum Established Patient Price $143.49
  • Average Established Patient Copayment $25.58
  • Minimum Established Patient Copayment $4.58
  • Maximum Established Patient Copayment $35.87

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Marcus Geer is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
UNIVERSITY OF MICHIGAN HEALTH SYSTEM1500 E MEDICAL CENTER DRIVE, SPC 5474
ANN ARBOR, MI 48109
(734) 764-1505Acute Care Hospitals

Reviews for MARCUS JOHANNES GEER MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1164872537
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
21124167456
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 1 + 1 + 2 + 4 + 1 + 6 + 7 + 4 + 5 + 6 + 24 = 63
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 63 = 77

The NPI number 1164872537 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

DR. TAMI L. REMINGTON PHARM.D.

Pharmacist

(Pharmacotherapy)

1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109

(734) 936-5023

DR. JAMES G STEVENSON PHARMD

Pharmacist

1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109

(734) 647-7794

DR. SALLY K GUTHRIE PHARM.D.

Pharmacist

(Psychiatric)

1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109

(734) 647-2350

DR. KARLA AURORA BLACKWOOD MD

Psychiatry & Neurology

(Psychiatry)

1500 E MEDICAL CENTER DR
B1 FLOOR UNIVERSITY HOSPITAL RECP EMERGENCY
ANN ARBOR, MI
ZIP 48109

(734) 996-4747

DEBORAH LOUISE VIHER NP

Nurse Practitioner

1500 E MEDICAL CENTER DR
3RD FLOOR TAUBMAN CENTER RECP D
ANN ARBOR, MI
ZIP 48109

(734) 647-5944

MS. DEBRA BANCROFT RIZZO F.N.P.-C

Nurse Practitioner

1500 E MEDICAL CENTER DR
3RD TAUBMAN CENTER RECP A
ANN ARBOR, MI
ZIP 48109

(734) 647-5900

DR. ELIZABETH KATHERINE SPELIOTES MD PHD

Internal Medicine

(Gastroenterology)

1500 E MEDICAL CENTER DR
3RD FLOOR TAUBMAN CENTER RECP D
ANN ARBOR, MI
ZIP 48109

(734) 647-5944

DR. ROBERT ADAM LIOTTA M.D.

Radiology

(Diagnostic Radiology)

1500 E MEDICAL CENTER DR
B1 FLOOR UNIVERSITY HOSPITAL RECP C
ANN ARBOR, MI
ZIP 48109

(734) 936-4566

LISA A HARRIS SPINNER CRNA

Nurse Anesthetist, Certified Registered

1500 E MEDICAL CENTER DR
1ST FLOOR TAUBMAN CENTER RECP E
ANN ARBOR, MI
ZIP 48109

(734) 763-6295

SHANNON LEE MITCHELL CRNA

Nurse Anesthetist, Certified Registered

1500 E MEDICAL CENTER DR
1H247 UNIVERSITY HOSPITAL
ANN ARBOR, MI
ZIP 48109

(734) 936-4280

CHRISTINA BUSH CRNA

Nurse Anesthetist, Certified Registered

1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109

(734) 936-4280

MARLENA STANKIEWICZ CRNA

Nurse Anesthetist, Certified Registered

1500 E MEDICAL CENTER DR
1H247 UNIVERSITY HOSPITAL
ANN ARBOR, MI
ZIP 48109

(734) 936-4280

DENISE R BAUER N.P.

Nurse Practitioner

1500 E MEDICAL CENTER DR
7TH FLOOR MOTT RM F7830
ANN ARBOR, MI
ZIP 48109

(734) 763-7354

MRS. CARRIE LEE LINT RN ACNP

Nurse Practitioner

1500 E MEDICAL CENTER DR
2ND FLOOR TAUBMAN CENTER RECP G
ANN ARBOR, MI
ZIP 48109

(734) 936-7010

MRS. TAMARA MANGAN GHORMLEY NP

Nurse Practitioner

(Family)

1500 E MEDICAL CENTER DR
B1 FLOOR CANCER CTR RECP C
ANN ARBOR, MI
ZIP 48109

(734) 936-6000

ELENA MARTINEZ STOFFEL MD MPH

Internal Medicine

(Gastroenterology)

1500 E MEDICAL CENTER DR
3RD FLOOR TAUBMAN CENTER RECP D
ANN ARBOR, MI
ZIP 48109

(734) 647-5944

DR. DAVID J BROWN M.D.

Otolaryngology

1500 E MEDICAL CENTER DR
2ND FLOOR TAUBMAN CTR RECP G
ANN ARBOR, MI
ZIP 48109

(734) 936-5730

CORRIE M YABLON MD

Radiology

(Diagnostic Radiology)

1500 E MEDICAL CENTER DR
2ND FLOOR TAUBMAN CENTER RECP A
ANN ARBOR, MI
ZIP 48109

(734) 936-5850

KEITH GINGERICH CRNA

Nurse Anesthetist, Certified Registered

1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109

(734) 936-4280

MRS. DANIELLE JEANETTE BOZAAN NP

Nurse Practitioner

1500 E MEDICAL CENTER DR
2ND FLOOR TAUBMAN CTR RECP G
ANN ARBOR, MI
ZIP 48109

(734) 936-7010

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164872537, enumerated as an "individual" on June 16, 2016.

The provider is located at 1500 E MEDICAL CENTER DR ANN ARBOR, MI 48109 and the phone number is (734) 936-4000.

Internal Medicine with taxonomy code 207RH0000X and a focus in Hematology.

The provider might be accepting Accepts: Ambetter from Meridian, Ambetter Health, Blue Care. Please consult your insurance carrier or call the provider to verify.

Marcus Geer is affiliated with: UNIVERSITY OF MICHIGAN HEALTH SYSTEM.