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Edit this profileAt a glance
- 965 Lake St, Oak Park, IL 60301
About Dr. Gryniewicz
Nancy Gryniewicz, M.D. is a healthcare provider in Oak Park, IL specializing in family medicine. Medicare claims data shows Nancy provided 4,029 services to 1,162 patients. The services billed most often include management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes, chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month, and management using the results of remote vital sign monitoring per calendar month, first 20 minutes. This provider record is associated with NPI 1558368043.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (708) 383-0400
- Email not available
Practice Locations
965 LAKE ST
Oak Park, IL 60301
Conditions Commonly Evaluated or Treated
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Bariatrics
Cancer Prevention
Cancer risk
Digestive
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
Heart health
Infectious Disease
Infectious disease
Kidney health
Lifestyle & wellness
Lifestyle health
Longevity
Metabolic & Lifestyle
Occupational health
Occupational Health
Rashes & allergy
Sexual Health
Sexual health
Substance use
Travel health
Wellness and energy
Workplace health
Wounds & skin
Most searched conditions
Cardiometabolic
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Procedures & services
Addiction & habits
Bladder & bowel
Breathing
Cancer Screening
Cancer screening
Checkups & exams
Chronic illness
Diagnostic testing
Diagnostic Tests
- COVID-19 Rapid Test
- COVID-19 testing
- Rapid Flu Swab
- Rapid Strep and Flu Swabs
- Urine Pregnancy Test
- Urine Drug Screen
Diagnostics & screening
Environmental health
Exams
Exams & Screenings
Fitness & body composition
Foot and Leg Pain
Heart & Circulation
Heart & circulation
Immunizations
Infection & Microbiology Tests
- Colon cancer screening consult
- STI and STD Screening
- H. Pylori Breath Test
Lifestyle & Prevention
Longevity
Lower endoscopy
Metabolic health
Minor Procedures
Occupational health
Occupational Health
Office procedures
- Minor laceration repair
- Removal of a minor skin lesion
- Superficial foreign-body removal
- Earwax removal
- Incision and drainage of an abscess
Post-Op Care
Preventive and evaluation
Preventive Care
Preventive imaging
Preventive interventions
- Vaccinations and immunizations
- Weight-management counseling
- Birth control counseling
- Smoking cessation counseling
Preventive screening
Routine Blood Tests
Screening & labs
Screening and diagnostic testing
Screening and testing
- Blood pressure screening
- Diabetes and prediabetes screening
- Point-of-care laboratory testing
- Cholesterol screening
- Depression screening
- EKG
Skin Procedures
Sleep Health
Travel Health
Travel medicine
Urgent Care Procedures
Wellness
Wellness & Screening
Wellness & Weight
Women's Health
Workplace health
Wound care
Wounds & skin
Sleep
Most searched procedures
Injections
- Immunotherapy
- Vitamin B12 Injections
Lungs & Breathing
- Pulmonary function test
Pain Management
- Joint injections
Respiratory
Senior Care
Sexual & Reproductive Health
Procedures Most Often Billed to Medicare
4,029 services · 1,162 patients · 23 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Collection and interpretation of physical parameters stored in computers and/or transmitted by the patient and/or caregiver to qualified health care professional, requiring 30 minutes or more, per 30 days | Treatment | 99091 |
443 | More than most peers in Family Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
57 | More often than most peers in Family Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
31 | Less often than most peers in Family Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
13 | Less often than most peers in Family Medicine |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
26 | Less often than most peers in Family Medicine |
| Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | Office visit | 99458 |
722 | More often than most peers in Family Medicine |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
641 | More often than most peers in Family Medicine |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
520 | More than most peers in Family Medicine |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office visit | 99454 |
475 | More than most peers in Family Medicine |
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99439 |
269 | More often than most peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family doctors at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other family doctors in Oak Park 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1994 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Nancy Gryniewicz specialize in?
Nancy Gryniewicz is a family doctor in Oak Park, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where is Nancy Gryniewicz located?
Nancy Gryniewicz is listed at 965 Lake St, Oak Park, IL 60301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Nancy Gryniewicz's phone number?
The number on file is (708) 383-0400. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Nancy Gryniewicz?
Nancy Gryniewicz's National Provider Identifier is 1558368043. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Nancy Gryniewicz train?
Nancy Gryniewicz attended Other, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Nancy Gryniewicz have?
Nancy Gryniewicz has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What does Nancy Gryniewicz do most often?
According to Medicare billing data, Nancy Gryniewicz provides treatments such as collection and interpretation of physical parameters stored in computers and/or transmitted by the patient and/or caregiver to qualified health care professional, requiring 30 minutes or more, per 30 days and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Nancy Gryniewicz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Nancy Gryniewicz. If this is you, claiming it is free.
Guide.md
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