Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AHMAD DAHMAN
NPI 1427635994
Urology in Portland, OR

Active since March 29, 2021PECOS EnrolledAccepts Medicare Assignment
501 N GRAHAM ST STE 420, PORTLAND, OR 97227(503) 288-7303 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 29, 2026, Jul 30, 2026, May 27, 2026 and 1 more (4 updates tracked since 2021).

About Ahmad Dahman NPPES

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

AHMAD DAHMAN (NPI 1427635994) is an individual urology provider in Portland, Oregon, licensed in Oregon (MD229309) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with West Virginia University Hospitals, Inc, and maintains a secondary practice location in Portland.

NPPES Registry Identity

NPI1427635994
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameAHMAD DAHMAN
Location Address501 N GRAHAM ST STE 420Portland, OR 97227-2006
Mailing Address541 Ne 20th Ave Ste 225Portland, OR 97232-2895 · (503) 963-2801
Sole ProprietorNo
Medical School CMSWest Virginia University School Of MedicineGraduated 2021
Enumeration DateMarch 29, 2021
Last NPPES UpdateSeptember 29, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2026
✔ NPI 1427635994 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in OR · MD229309
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
501 N GRAHAM ST STE 420, Portland, OR 97227

Secondary Practice Location 1

Location 12801 N Gantenbein AvePortland, OR 97227-1623 · Phone (503) 413-2200

Other Identifiers 2

Medicaid2387978WA
Medicaid500878274OR

Accepted 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

Ahmad Dahman 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 ID840762845
PECOS Enrollment IDI20260610002862
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 Ahmad Dahman reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Acute Care Hospital
2801 N GANTENBEIN AVE
Portland, OR 97227
  • Reassigned Medicare billing, Oregon enrollment
  • 719 clinicians in this Medicare group
Specialist
541 NE 20TH AVE, SUITE 225
Portland, OR 97232
  • Reassigned Medicare billing, Oregon enrollment
  • 338 clinicians in this Medicare group
Hospitalist
19300 SW 65TH AVE
Tualatin, OR 97062
  • Reassigned Medicare billing, Oregon enrollment
  • 218 clinicians in this Medicare group
Clinic/Center
24800 SE STARK ST
Gresham, OR 97030
  • Reassigned Medicare billing, Oregon enrollment
  • 132 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

West Virginia University Hospitals, Inc

Acute Care Hospitals · Morgantown, WV
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number510001
Location1 Medical Center DriveMorgantown, WV 26506 · Monongalia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97227 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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
Most-billed visit code 99213
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 7

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

Urology
501 N GRAHAM ST STE 420
PORTLAND, OR 97227
Physician Assistant
501 N GRAHAM ST STE 420
PORTLAND, OR 97227
Physician Assistant (Surgical)
501 N GRAHAM ST STE 420
PORTLAND, OR 97227
Physician Assistant
501 N GRAHAM ST STE 420
PORTLAND, OR 97227
Urology
501 N GRAHAM ST STE 420
PORTLAND, OR 97227
Physician Assistant
501 N GRAHAM ST STE 420
PORTLAND, OR 97227
Physician Assistant (Surgical)
501 N GRAHAM ST STE 420
PORTLAND, OR 97227

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 Ahmad Dahman's NPI number?

The NPI number for Ahmad Dahman is 1427635994. It was assigned to this individual provider in the NPPES registry on March 29, 2021.

Where is Ahmad Dahman located?

Ahmad Dahman practices at 501 N Graham St Ste 420, Portland, OR 97227. The listed phone number is (503) 288-7303.

What is Ahmad Dahman's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Ahmad Dahman enrolled in Medicare?

Yes. Ahmad Dahman 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 Ahmad Dahman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ahmad Dahman reassigns Medicare benefits to 4 organizations: Legacy Emanuel Hospital & Health Center (Portland, OR), The Oregon Clinic PC (Portland, OR), Legacy Meridian Park Hospital (Tualatin, OR) and Legacy Mount Hood Medical Center (Gresham, OR). 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 Ahmad Dahman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ahmad Dahman accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., Providence Health Plan and Regence BlueCross BlueShield of Oregon list Ahmad Dahman 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 Ahmad Dahman affiliated with any hospitals?

According to CMS data, Ahmad Dahman is affiliated with West Virginia University Hospitals, Inc.

When was this NPI record last updated?

The NPPES record for Ahmad Dahman was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.