MARIA DIAB
NPI 1003259045
Internal Medicine - Hematology in Detroit, MI

Q: What is Maria Diab's NPI number?

The NPI number for Maria Diab is 1003259045. It was assigned to this individual provider in the NPPES registry on April 9, 2013.

Q: What is Maria Diab's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Q: When was this NPI record last updated?

The NPPES record for Maria Diab was last updated on December 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.

Active since April 09, 2013PECOS EnrolledAccepts Medicare Assignment

2799 W GRAND BLVD, DETROIT, MI 48202(800) 653-6568(313) 876-1305 Get Directions Write a Review

NPPES record last updated: December 22, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 22, 2022, Aug 27, 2020, Apr 7, 2020 (3 updates tracked since 2020).

On this page

About Maria Diab NPPES

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

MARIA DIAB (NPI 1003259045) is an individual hematology provider in Detroit, Michigan, licensed in Michigan (4301103541) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS, is affiliated with Henry Ford Health Hospital, and maintains a secondary practice location in Detroit.

NPPES Registry Identity

NPI1003259045

Entity TypeIndividualFemale

Primary Taxonomy207RH0000X

Provider Legal NameMARIA DIAB

Location Address2799 W GRAND BLVDDetroit, MI 48202-2608

Mailing Address1 Ford Pl Ste 3aDetroit, MI 48202-3450 · (138) 744-8063 · Fax (313) 876-1305

Phone(800) 653-6568

Fax(313) 876-1305

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateApril 9, 2013

Last NPPES UpdateDecember 22, 20223 updates tracked since enumeration

NPPES CertifiedDecember 22, 2022

✔ NPI 1003259045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0000X

License✔ Licensed in MI · 4301103541

Definition

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.

Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License 85005 (GA)

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License 4301103541 (MI)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2799 W GRAND BLVD, Detroit, MI 48202

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Secondary Practice Location 1

Location 14201 Saint Antoine St, 5C-UHCDetroit, MI 48201-2153 · Phone (313) 745-7999

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health.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

Maria Diab 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 ID3072884915

PECOS Enrollment IDI20170810001658

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

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

Henry Ford Health System

Same address

Plastic Surgery

2799 W GRAND BLVD
Detroit, MI 48202

Reassigned Medicare billing, Michigan enrollment
1,886 clinicians in this Medicare group

NPI 1528142858 (313) 916-2600

Michigan Emergency Services

1.9 mi

Medical Toxicology

4201 SAINT ANTOINE ST, SUITE 3R
Detroit, MI 48201

Reassigned Medicare billing, Michigan enrollment
83 clinicians in this Medicare group

NPI 1316968191 (313) 745-3330

The Emory Clinic Inc

595 mi

Internal Medicine

1365 CLIFTON RD NE
Atlanta, GA 30322

Reassigned Medicare billing, Georgia enrollment
4,840 clinicians in this Medicare group

NPI 1396798229 (404) 778-2144

Emory Medical Care Foundation Inc

598 mi

Internal Medicine

80 JESSE HILL JR DRIVE, EMCF
Atlanta, GA 30303

Reassigned Medicare billing, Georgia enrollment
2,681 clinicians in this Medicare group

NPI 1063452381 (404) 778-7717

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 5

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

95 services37 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

48 services26 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.

37 services22 patients

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.

16 services16 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Henry Ford Health Hospital

Acute Care Hospitals · Detroit, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230053

Location2799 W Grand BlvdDetroit, MI 48202 · Wayne County

Emergency services Birthing friendly

Henry Ford Health West Bloomfield Hospital

Acute Care Hospitals · West Bloomfield, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230302

Location6777 West Maple RoadWest Bloomfield, MI 48322 · Oakland County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48202 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

$177.36 typical visit price

range $58.04 – $177.36

Typical copayment $44.34 (range $14.51 – $44.34)

Most-billed visit code 99205

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Capecitabine, oral, 500 mg J8521

Treatment-Treatment - Miscellaneous · category RX029N

6 suppliers26 claims2,182 services$0.58 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

5 suppliers19 claims19 services$18.93 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

HENRY FORD HOSPITAL

General Acute Care Hospital