WILLIAM G STAHL III M.D.
NPI 1265484760
Internal Medicine - Gastroenterology in Marquette, MI

NPI Status: Active since May 16, 2006

Contact Information

1414 W FAIR AVE
SUITE 247
MARQUETTE, MI
ZIP 49855
Phone: (906) 225-3880
Fax: (906) 225-4523

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  • Individual
  • Male
  • Years of Experience 38
  • Internal Medicine
  • Gastroenterology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About WILLIAM STAHL

This page provides the complete NPI Profile along with additional information for William Stahl, an internist established in Marquette, Michigan with a medical specialization in Internal Medicine, focusing in gastroenterology and more than 38 years of experience. He graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 1988. The healthcare provider is registered in the NPI registry with number 1265484760 assigned on May 2006. The practitioner's primary taxonomy code is 207RG0100X with license number 4301082866 (MI). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1265484760
Provider Name
WILLIAM G STAHL III M.D.
Gender
Male
Entity Type
Individual
Location Address
1414 W FAIR AVE SUITE 247 MARQUETTE, MI 49855
Location Phone
(906) 225-3880
Location Fax
(906) 225-4523
Mailing Address
1414 W FAIR AVE SUITE 247 MARQUETTE, MI 49855
Mailing Phone
(906) 225-3880
Mailing Fax
(906) 225-4523
Medical School Name
RUTGERS R W JOHNSON MEDICAL SCHOOL (CAM/NEW BRUNS/PISC)
Graduation Year
1988
Is Sole Proprietor?
No
Enumeration Date
05-16-2006
Last Update Date
01-28-2013
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An internist like William Stahl 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 Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
4301082866
License State
MI
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

4301082866 (MI)

Insurance Plans Accepted

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

  • 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� Select HMO Bronze Saver HSA - HMO
  • Blue Cross� Select HMO Bronze Secure - HMO
  • Blue Cross� Select HMO Silver - HMO
  • Blue Cross� Select HMO Silver Extra - HMO
  • Blue Cross� Select HMO Silver Saver - HMO
  • Blue Cross� Select HMO Value - 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

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

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

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
F61513MEDICARE UPIN (02)MI 
N83900011MEDICARE PIN (08)MI 
0521096OTHER (01)MIBLUE CROSS BLUE SHIELD MI
4994550MEDICAID (05)MI 

Medicare Participation & PECOS Enrollment Status

William Stahl 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.

William Stahl 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: 9638069198

    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: I20040318000069

    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

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

This service was performed 22 times for 22 patients

Biopsy of large bowel using a flexible endoscope

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

This service was performed 30 times for 30 patients

Colonoscopy

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

This service was performed for 282 patients

Colorectal cancer screening; colonoscopy on individual at high risk

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

This service was performed 86 times for 86 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

This service was performed 14 times for 14 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

This service was performed 30 times for 30 patients

Diagnostic exam of large bowel using a flexible endoscope

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

This service was performed 20 times for 20 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

This service was performed 243 times for 241 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

This service was performed 100 times for 98 patients

Upper gastrointestinal (GI) endoscopy for acid reflux

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

This service was performed for 102 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $31.53 for a new patient copayment and $24.11 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 49855 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $126.15
  • Minimum New Patient Price $54.34
  • Maximum New Patient Price $166.68
  • Average New Patient Copayment $31.53
  • Minimum New Patient Copayment $13.58
  • Maximum New Patient Copayment $41.67

Established Patients Visit Costs *

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

  • Average Established Patient Price $96.44
  • Minimum Established Patient Price $17.09
  • Maximum Established Patient Price $135.4
  • Average Established Patient Copayment $24.11
  • Minimum Established Patient Copayment $4.27
  • Maximum Established Patient Copayment $33.85

* 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.

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Colonoscopy Interval for Patients with a History of Adenomatous Polyps - Avoidance of Inappropriate Use 98% 121
Percentage of patients aged 18 years and older receiving a surveillance colonoscopy, with a history of a prior adenomatous polyp(s) in previous colonoscopy findings, which had an interval of 3 or more years since their last colonoscopy
Implementation of Use of Specialist Reports Back to Referring Clinician or Group to Close Referral LoopYesN/A
Performance of regular practices that include providing specialist reports back to the referring individual MIPS eligible clinician or group to close the referral loop or where the referring individual MIPS eligible clinician or group initiates regular inquiries to specialist for specialist reports which could be documented or noted in the EHR technology.
Regularly assess the patient experience of care through surveys, advisory councils and/or other mechanisms.YesN/A
Regularly assess the patient experience of care through surveys, advisory councils and/or other mechanisms.

Reviews for WILLIAM G STAHL III M.D.

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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.
1265484760
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
22125888712
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 1 + 2 + 5 + 8 + 8 + 8 + 7 + 1 + 2 + 24 = 70
Step 3: because the number obtained in step 2 ends in zero, the check digit is zero.
0

The NPI number 1265484760 is valid because the calculated check digit 0 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.

NPI Name / Type Taxonomy Address
1821090994 JOHN P BARTLETT M.D.
Individual
Internal Medicine1414 W FAIR AVE STE 201
MARQUETTE, MI 49855
(906) 225-4500
1811991250 MARTHA J SHORT M.D.
Individual
Internal Medicine1414 W FAIR AVE STE 201
MARQUETTE, MI 49855
(906) 225-4500
1447254883 LESLIE A. ROBB M.D.
Individual
Internal Medicine1414 W FAIR AVE STE 201
MARQUETTE, MI 49855
(906) 225-4500
1174527519 ISLAM K QUASEM M.D.
Individual
Internal Medicine1414 W FAIR AVE STE 201
MARQUETTE, MI 49855
(906) 225-4500
1962402750 MICHAEL K CONLEY MD
Individual
Specialist1414 W FAIR AVE SUITE 247
MARQUETTE, MI 49855
(906) 225-4480
1235121427 ERIC J ROSE DO
Individual
Preventive Medicine (Occupational Medicine)1414 W FAIR AVE STE 35
MARQUETTE, MI 49855
(906) 225-4555
1063404804 EDITH ELAINE WEATHERFORD CPNP
Individual
Nurse Practitioner (Pediatrics)1414 W FAIR AVE #226
MARQUETTE, MI 49855
(906) 225-3925
1457345126 JEFFREY F GEPHART MD
Individual
Internal Medicine (Infectious Disease)1414 W FAIR AVE STE 111
MARQUETTE, MI 49855
(906) 225-7601
1003800640MR. STEVEN M GUALDONI PAC
Individual
Physician Assistant1414 W FAIR AVE STE 332
MARQUETTE, MI 49855
(906) 225-3922
1124012661MR. DANIEL J ARNOLD MD
Individual
Internal Medicine (Hematology)1414 W FAIR AVE SUITE 332
MARQUETTE, MI 49855
(906) 225-3922
1487648028MR. AARON P SCHOLNIK MD
Individual
Internal Medicine (Hematology)1414 W FAIR AVE SUITE 332
MARQUETTE, MI 49855
(906) 225-3922
1457346967 JOHN R WALLACE MD
Individual
Internal Medicine (Infectious Disease)1414 W FAIR AVE SUITE 111
MARQUETTE, MI 49855
(906) 225-7601
1689669848 KATHERINE HOULE NP
Individual
Nurse Practitioner (Primary Care)1414 W FAIR AVE STE 344
MARQUETTE, MI 49855
(906) 225-3910
1326039462 LISA M LONG MD
Individual
Family Medicine1414 W FAIR AVE STE 36
MARQUETTE, MI 49855
(906) 225-3864
1780675827 ROBERT J LORINSER MD
Individual
Family Medicine1414 W FAIR AVE SUITE 36
MARQUETTE, MI 49855
(906) 225-3864
1861483901 STUART K JOHNSON DO
Individual
Family Medicine1414 W FAIR AVE STE 36
MARQUETTE, MI 49855
(906) 225-3864
1730170879 KEVIN L PIGGOTT MD
Individual
Family Medicine1414 W FAIR AVE STE 36
MARQUETTE, MI 49855
(906) 225-3864
1710978853 FREDERICK PAUL HOENKE MD
Individual
Family Medicine1414 W FAIR AVE STE 36
MARQUETTE, MI 49855
(906) 225-3864
1750372892 HENDRIK C VANDENENDE MD
Individual
Family Medicine1414 W FAIR AVE STE 36
MARQUETTE, MI 49855
(906) 225-3864
1720079569 WILLIAM M SHORT MD
Individual
Family Medicine1414 W FAIR AVE STE 36
MARQUETTE, MI 49855
(906) 225-3864

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265484760, enumerated in the NPI registry as an "individual" on May 16, 2006

The provider is located at 1414 W Fair Ave Suite 247 Marquette, Mi 49855 and the phone number is (906) 225-3880

The provider's speciality is Internal Medicine with taxonomy code 207RG0100X with a focus in Gastroenterology

The provider has more than 38 years of experience. He graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 1988.

The provider might be accepting Accepts: Blue Care Network of Michigan, Blue Cross Blue. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary 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.

Medicare beneficiaries should expect a typical cost of $126.15 with an average copayment of $31.53 for new patient appointments. Established patients should expect a typical charge of $96.44 and an average copayment of 24.11. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, Biopsy of large bowel using a flexible endoscope, Colonoscopy, Colorectal cancer screening; colonoscopy on individual at high risk, Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk, Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, Diagnostic exam of large bowel using a flexible endoscope, Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito, Removal of polyps or growths of large bowel using an endoscope with mechanical snare and Upper gastrointestinal (GI) endoscopy for acid reflux.

This NPI record was last updated on May 16, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.