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Edit this profileAt a glance
- 2700 Ygnacio Valley Rd Ste 100, Walnut Creek, CA 94598
About Dr. Grzegorczyk
Based in Walnut Creek, CA, Anne M. Grzegorczyk, M.D. is listed in the NPI registry under pulmonary disease. Anne is also listed as specializing in critical care medicine. According to Medicare claims data, Anne cared for 997 Medicare patients across 1,470 services. The services billed most often include critical care, first 30-74 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes. NPI 1720434004 identifies this record in the national registry.
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
- (925) 939-3050
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
2700 YGNACIO VALLEY RD STE 100
Walnut Creek, CA 94598
Conditions Commonly Evaluated or Treated
Within Pulmonary Disease 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
Chronic conditions
Most searched conditions
Airway disorders
Blood vessel disorders
Critical care
Diagnostic findings
Environmental lung diseases
Genetic conditions
Infections
- Community-acquired pneumonia
- Fungal lung infection
- Legionnaires' Disease
- Lung abscess
- NTM lung infection
- Severe Pneumonia
- Tuberculosis
- Valley fever
- Walking Pneumonia in Children
- Whooping Cough
Inflammatory conditions
Lung growths
Occupational & environmental
Pleural disorders
Post-infection conditions
Sleep disorders
- Excessive daytime sleepiness
- Shallow Breathing In Sleep
- Snoring
- Upper Airway Resistance Syndrome
- Waking Up Gasping Or Choking
Structural lung conditions
Symptoms
- Blue Baby Syndrome
- Chest congestion
- Coughing up blood
- Low oxygen levels
- Rapid Breathing
- Severe asthma attack
- Wheezing
Procedures & services
Biopsies
Breathing
- CPAP Setup and Mask Troubleshooting
- Home Oxygen Therapy Training
- Nebulizer Breathing Treatment Training
Pleural procedures
- Draining lung fluid
- Chest tube insertion
- Medical thoracoscopy
- Permanent chest drain insertion
- Pleural sealing procedure
Sleep medicine
- At-home sleep test
- BiPAP therapy
- CPAP titration
- Overnight oxygen study
- Sleep study
Treatments
Most searched procedures
Airway care
Airway management
Biopsies & diagnostics
Breathing tests
- 6-minute walk test
- Asthma challenge test
- Cardiopulmonary Exercise Testing (CPET)
- Exhaled nitric oxide test
Cancer diagnostic procedures
Consultations
Counseling & prevention
Critical care
Diagnostic procedures
Drainage care
Imaging
Interventional procedures
Lab tests
Lung tests
Medications
Monitoring
Procedures
Rehabilitation
Screening
Sleep equipment
Sleep treatments
Specialist evaluations
Specialized testing
Procedures Most Often Billed to Medicare
1,470 services · 997 patients · 21 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Irrigation and suction of lung airways to obtain cells using an endoscope | Procedure | 31624 |
33 | More often than most peers in Pulmonary Disease |
| Aspiration of initial secretion of lung airway using an endoscope | Procedure | 31645 |
28 | More often than most peers in Pulmonary Disease |
| Aspiration of fluid from chest cavity using imaging guidance | Procedure | 32555 |
11 | Less often than most peers in Pulmonary Disease |
| Ultrasound scan of chest | Imaging | 76604 |
26 | As often as other peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
34 | Less often than most peers in Pulmonary Disease |
| Test to determine lung volumes using sensors | Treatment | 94726 |
34 | Less often than most peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
33 | Less often than most peers in Pulmonary Disease |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
30 | More often than most peers in Pulmonary Disease |
| Test for exercise-induced lung stress | Treatment | 94618 |
30 | As often as other peers in Pulmonary Disease |
| Critical care, first 30-74 minutes | Office visit | 99291 |
380 | More than most peers in Pulmonary Disease |
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 lung specialists at this location 8
Same specialty, same street address — most likely the same department or group.
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.
Other lung specialists in Walnut Creek 2
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Irrigation and suction of lung airways to obtain cells using an endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Anne M. Grzegorczyk specialize in?
Anne M. Grzegorczyk is a lung specialist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where is Anne M. Grzegorczyk located?
Anne M. Grzegorczyk is listed at 2700 Ygnacio Valley Rd Ste 100, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Anne M. Grzegorczyk's phone number?
The number on file is (925) 939-3050. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Anne M. Grzegorczyk's NPI number?
Anne M. Grzegorczyk's National Provider Identifier is 1720434004. 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 Anne M. Grzegorczyk train?
Anne M. Grzegorczyk attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Anne M. Grzegorczyk been practicing?
Anne M. Grzegorczyk has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Anne M. Grzegorczyk do most often?
According to Medicare billing data, Anne M. Grzegorczyk performs procedures including irrigation and suction of lung airways to obtain cells using an endoscope, aspiration of initial secretion of lung airway using an endoscope and aspiration of fluid from chest cavity using imaging guidance; reads or performs imaging such as ultrasound scan of chest; provides treatments such as test to examine how well the lungs exchange gases and test to determine lung volumes using sensors, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Anne M. Grzegorczyk confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Anne M. Grzegorczyk. If this is you, claiming it is free.
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