What is Timothy Prajka's NPI number?

Timothy Prajka's National Provider Identifier (NPI) is 1003445248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Timothy Prajka's specialty?

Timothy Prajka is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Timothy Prajka located?

Timothy Prajka's practice location on file with NPPES is 1357 W 103rd St, Chicago, IL 60643-2392.

What is Timothy Prajka's phone number?

The practice phone number listed in the NPPES registry for Timothy Prajka is (773) 238-0800.

Does Timothy Prajka accept Medicare?

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

Is Timothy Prajka's NPI active?

Yes — Timothy Prajka's NPI (1003445248) is active in the NPPES registry as of the last update on 2023-11-29.

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Timothy Prajka, DO

NPI 1003445248 · Family Medicine Physician · Chicago, IL

Timothy Prajka, DO is a Family Medicine Physician provider in Chicago, IL (NPI 1003445248).

Provider details

NPI number: 1003445248
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: No
License: 036-167259 (IL)

Practice location

1357 W 103rd St

Chicago, IL 60643-2392

Phone: (773) 238-0800

Fax: (773) 238-0428

Street-level locationGet directions

More IL providers

Mailing address

29373 Network Pl

Chicago, IL 60673-1293

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense 036-167259 (IL)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

9555 S 52nd Ave
Oak Lawn, IL 60453-3054
Phone: (708) 422-5700

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

Profile Score

Established profile(53/100 index)

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

Registry tenure28% of score
6 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
240 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)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	79	$120
Insertion of Needle Into Vein for Collection of Blood Sample36415	57	$8
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	34	$92
Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211	22	$24
Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439	18	$119
Admn Sarscov2 Vacc 1 Dose90480

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Amlodipine Besylate	133	63
Atorvastatin Calcium	92	46
Levocetirizine Dihydrochloride	62	37
Rosuvastatin Calcium	59	29
Furosemide	58	27
Carvedilol	51	19
Gabapentin	45	18

Enumerated: 2020-04-08
Last updated: 2023-11-29
Certified: 2023-11-29

Frequently asked questions

What is Timothy Prajka's NPI number?: Timothy Prajka's National Provider Identifier (NPI) is 1003445248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Timothy Prajka's specialty?: Timothy Prajka is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Timothy Prajka located?: Timothy Prajka's practice location on file with NPPES is 1357 W 103rd St, Chicago, IL 60643-2392.
What is Timothy Prajka's phone number?: The practice phone number listed in the NPPES registry for Timothy Prajka is (773) 238-0800.
Does Timothy Prajka accept Medicare?: Timothy Prajka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Timothy Prajka's NPI active?: Yes — Timothy Prajka's NPI (1003445248) is active in the NPPES registry as of the last update on 2023-11-29.

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

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)