What is Hesham E Gayar, MD, PC's NPI number?

Hesham E Gayar, MD, PC's National Provider Identifier (NPI) is 1831622794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is Hesham E Gayar, MD, PC?

Hesham E Gayar, MD, PC is classified in the NPPES registry as Specialist (Other Service Providers).

Where is Hesham E Gayar, MD, PC located?

Hesham E Gayar, MD, PC's practice location on file with NPPES is 401 W Greenlawn Ave, Lansing, MI 48910-2819.

What is Hesham E Gayar, MD, PC's phone number?

The practice phone number listed in the NPPES registry for Hesham E Gayar, MD, PC is (517) 975-7800.

Who is the authorized official for Hesham E Gayar, MD, PC?

The authorized official listed on Hesham E Gayar, MD, PC's NPPES record is Susan Knopp, Billing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Hesham E Gayar, MD, PC's NPI active?

Yes — Hesham E Gayar, MD, PC's NPI (1831622794) is active in the NPPES registry as of the last update on 2017-04-07.

OrganizationActive

Hesham E Gayar, MD, PC

NPI 1831622794 · Specialist · Lansing, MI

Hesham E Gayar, MD, PC is a Specialist organization in Lansing, MI (NPI 1831622794).

Provider details

NPI number: 1831622794
Entity type: Organization
Primary specialty: SpecialistOther Service Providers
Organization subpart: No
Authorized official: Susan Knopp, Billing Manager(810) 342-3813
License: 4301056934 (MI)

Practice location

401 W Greenlawn Ave

Radiation Dept

Lansing, MI 48910-2819

Phone: (517) 975-7800

Fax: (810) 342-3784

Street-level locationGet directions

More MI providers

Mailing address

4100 Beecher Rd Ste a

Flint, MI 48532-3661

Specialties & taxonomies

SpecialistPrimary174400000XLicense 4301056934 (MI)
Other Service Providers

Other names (DBA / former)

Doing business as: Radiation Oncology Consultants

Profile Score

Established profile(71/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
9 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2017-04-07
Last updated: 2017-04-07

Frequently asked questions

What is Hesham E Gayar, MD, PC's NPI number?: Hesham E Gayar, MD, PC's National Provider Identifier (NPI) is 1831622794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is Hesham E Gayar, MD, PC?: Hesham E Gayar, MD, PC is classified in the NPPES registry as Specialist (Other Service Providers).
Where is Hesham E Gayar, MD, PC located?: Hesham E Gayar, MD, PC's practice location on file with NPPES is 401 W Greenlawn Ave, Lansing, MI 48910-2819.
What is Hesham E Gayar, MD, PC's phone number?: The practice phone number listed in the NPPES registry for Hesham E Gayar, MD, PC is (517) 975-7800.
Who is the authorized official for Hesham E Gayar, MD, PC?: The authorized official listed on Hesham E Gayar, MD, PC's NPPES record is Susan Knopp, Billing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is Hesham E Gayar, MD, PC's NPI active?: Yes — Hesham E Gayar, MD, PC's NPI (1831622794) is active in the NPPES registry as of the last update on 2017-04-07.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Other names (DBA / former)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Other names (DBA / former)

Profile Score

Frequently asked questions