What is Mihaela Mihailescu's NPI number?

Mihaela Mihailescu's National Provider Identifier (NPI) is 1003943614, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mihaela Mihailescu's specialty?

Mihaela Mihailescu is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).

Where is Mihaela Mihailescu located?

Mihaela Mihailescu's practice location on file with NPPES is 4440 W 95th St, Oak Lawn, IL 60453-2600.

What is Mihaela Mihailescu's phone number?

The practice phone number listed in the NPPES registry for Mihaela Mihailescu is (708) 684-8000.

Does Mihaela Mihailescu accept Medicare?

Mihaela Mihailescu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Mihaela Mihailescu's NPI active?

Yes — Mihaela Mihailescu's NPI (1003943614) is active in the NPPES registry as of the last update on 2021-11-30.

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Mihaela Mihailescu, MD

NPI 1003943614 · Rheumatology Physician · Oak Lawn, IL

Mihaela Mihailescu, MD is a Rheumatology Physician provider in Oak Lawn, IL (NPI 1003943614).

Provider details

NPI number: 1003943614
Entity type: Individual
Primary specialty: Rheumatology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: Yes
License: 036-103892 (IL)

Practice location

4440 W 95th St

Oak Lawn, IL 60453-2600

Phone: (708) 684-8000

Street-level locationGet directions

More IL providers

Mailing address

1448 S State St

Chicago, IL 60605-2803

Specialties & taxonomies

Rheumatology PhysicianPrimary207RR0500XLicense 036-103892 (IL)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(70/100 index)

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

Registry tenure28% of score
19 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
699 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. 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.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Insertion of Needle Into Vein for Collection of Blood Sample36415	263	$9
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	251	$131
Aspiration And/Or Injection of Fluid From Large Joint20610	41	$76
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	37	$178
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	30	$175
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Methotrexate Sodiumbrand: Methotrexate	326	93
Hydroxychloroquine Sulfate	237	76
Prednisone	214	68
Allopurinol	126	30
Etanerceptbrand: Enbrel Sureclick	83	11
Leflunomide	63	20
Adalimumabbrand: Humira(cf) Pen

Enumerated: 2007-02-28
Last updated: 2021-11-30
Certified: 2021-11-30

Frequently asked questions

What is Mihaela Mihailescu's NPI number?: Mihaela Mihailescu's National Provider Identifier (NPI) is 1003943614, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mihaela Mihailescu's specialty?: Mihaela Mihailescu is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
Where is Mihaela Mihailescu located?: Mihaela Mihailescu's practice location on file with NPPES is 4440 W 95th St, Oak Lawn, IL 60453-2600.
What is Mihaela Mihailescu's phone number?: The practice phone number listed in the NPPES registry for Mihaela Mihailescu is (708) 684-8000.
Does Mihaela Mihailescu accept Medicare?: Mihaela Mihailescu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Mihaela Mihailescu's NPI active?: Yes — Mihaela Mihailescu's NPI (1003943614) is active in the NPPES registry as of the last update on 2021-11-30.

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

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Insertion of Needle Into Vein for Collection of Blood Sample36415	263	$9
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	251	$131
Aspiration And/Or Injection of Fluid From Large Joint20610	41	$76
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	37	$178
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	30	$175
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Methotrexate Sodiumbrand: Methotrexate	326	93
Hydroxychloroquine Sulfate	237	76
Prednisone	214	68
Allopurinol	126	30
Etanerceptbrand: Enbrel Sureclick	83	11
Leflunomide	63	20
Adalimumabbrand: Humira(cf) Pen

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)