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DR. WAEL DAHHAN M.D.
NPI 1548618796
Internal Medicine - Gastroenterology in Detroit, MI

Active since May 28, 2016PECOS EnrolledAccepts Medicare Assignment
4160 JOHN R ST STE 615, DETROIT, MI 48201(313) 745-4195(313) 993-8669 Get Directions Write a Review

NPPES record last updated: January 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 9, 2026, Dec 31, 2024, Dec 8, 2022 (3 updates tracked since 2022).

About Dr. Wael Dahhan M.d. NPPES

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

DR. WAEL DAHHAN M.D. (NPI 1548618796) is an individual gastroenterology provider in Detroit, Michigan, licensed in Michigan (4301069000) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and maintains a secondary practice location in Royal Oak.

NPPES Registry Identity

NPI1548618796
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. WAEL DAHHANCredential: M.D.
Location Address4160 JOHN R ST STE 615Detroit, MI 48201-2022
Mailing Address400 Mack AveDetroit, MI 48201-2136
Phone(313) 745-4195
Fax(313) 993-8669
Sole ProprietorYes
Medical School CMSOtherGraduated 1988
Enumeration DateMay 28, 2016
Last NPPES UpdateJanuary 9, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 9, 2026
✔ NPI 1548618796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in MI · 4301069000✔ Licensed in FL · ME 77577
Definition
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.
4160 JOHN R ST STE 615, Detroit, MI 48201
Open in Google Maps ↗

Secondary Practice Location 1

Location 13601 W 13 Mile RdRoyal Oak, MI 48073-6712 · Phone (248) 898-5000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Wael Dahhan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476944133
PECOS Enrollment IDI20220106002835
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Wael Dahhan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Physician Group
Same address
Physician Assistant
4100 JOHN R ST
Detroit, MI 48201
  • Reassigned Medicare billing, Michigan enrollment
  • 731 clinicians in this Medicare group
NPI 1316987589 (313) 745-4525
Beaumont Medical Group Hospital -Based Services
12 mi
Hospitalist
3601 W 13 MILE RD
Royal Oak, MI 48073
  • Reassigned Medicare billing, Michigan enrollment
  • 946 clinicians in this Medicare group
NPI 1427567858 (248) 898-5000
Troy Gastroenterology, PC
14 mi
Anesthesiology
4600 INVESTMENT DR, SUITE 270
Troy, MI 48098
  • Reassigned Medicare billing, Michigan enrollment
  • 49 clinicians in this Medicare group
NPI 1740232701 (248) 844-9710
Spectrum Health Primary Care Partners
136 mi
Radiology
4100 LAKE DR SE, SUITE 102
Grand Rapids, MI 49546
  • Reassigned Medicare billing, Michigan enrollment
  • 2,446 clinicians in this Medicare group
NPI 1528374683 (616) 974-4800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
84 services82 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
83 services53 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
38 services21 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
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.
34 services33 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
23 services18 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
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.
20 services20 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Harper University Hospital

Acute Care Hospitals · Detroit, MI
1/5 CMS rating
OwnershipProprietary
CMS Certification Number230104
Location3990 John R StreetDetroit, MI 48201 · Wayne County
Emergency services Birthing friendly

Beaumont Hospital Royal Oak

Acute Care Hospitals · Royal Oak, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230130
Location3601 W Thirteen Mile RdRoyal Oak, MI 48073 · Oakland County
Emergency services Birthing friendly

Detroit Receiving Hospital

Acute Care Hospitals · Detroit, MI
1/5 CMS rating
OwnershipProprietary
CMS Certification Number230273
Location4201 St Antoine St - 2CDetroit, MI 48201 · Wayne County
Emergency services

Karmanos Cancer Center

Acute Care Hospitals · Detroit, MI
3/5 CMS rating
OwnershipProprietary
CMS Certification Number230297
Location4100 John RDetroit, MI 48201 · Wayne County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48201 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WILLIAM DEAN JACOBUS DO
Student in an Organized Health Care Education/Training Program
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195
ALFREDO MUNOZ-LAROCHE MD
Student in an Organized Health Care Education/Training Program
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195
VEDA VYAS GOKULA MD, MBA
Student in an Organized Health Care Education/Training Program
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195
ZAYD AYAS
Surgery
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195
ROOZBEH MANSOUR MD
Surgery
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-8773
MR. MOHAMEDALMORTDA KHAIRALSEED MD
Student in an Organized Health Care Education/Training Program
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195
JESSICA A JOHNS MD
Emergency Medicine
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195
DR. MARILEE JA CLUNK M.D.
Student in an Organized Health Care Education/Training Program
4160 JOHN R ST STE 615
DETROIT, MI 48201
Wayne County (313) 745-4195

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 Wael Dahhan's NPI number?

The NPI number for Wael Dahhan is 1548618796. It was assigned to this individual provider in the NPPES registry on May 28, 2016.

Where is Wael Dahhan located?

Wael Dahhan practices at 4160 John R St Ste 615, Detroit, MI 48201. The listed phone number is (313) 745-4195.

What is Wael Dahhan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Wael Dahhan enrolled in Medicare?

Yes. Wael Dahhan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Wael Dahhan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wael Dahhan reassigns Medicare benefits to 4 organizations: University Physician Group (Detroit, MI), Beaumont Medical Group Hospital -Based Services (Royal Oak, MI), Troy Gastroenterology, PC (Troy, MI) and Spectrum Health Primary Care Partners (Grand Rapids, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Wael Dahhan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Wael Dahhan accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Wael Dahhan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Wael Dahhan affiliated with any hospitals?

According to CMS data, Wael Dahhan is affiliated with Spectrum Health, Harper University Hospital, Beaumont Hospital Royal Oak, Detroit Receiving Hospital and Karmanos Cancer Center.

When was this NPI record last updated?

The NPPES record for Wael Dahhan was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.