Doctor profile · Federal record
Dr. Anne Grzegorczyk, M.D.
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Critical Care Medicine (Internal Medicine) Physician · Walnut Creek, CA
- NPI 1720434004
- Accepts Medicare
- MIPS 92.7 / 100 · 2023
- 10 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2700 Ygnacio Valley RD Ste 100
Walnut Creek, CA 945983462
(925) 939-3050
Credentials & registration
- NPI registered
- May 2016 — 10 yrs on file
- Profile last updated
- April 22, 2024
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State license (1)
- California #A154982
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720434004. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
763
Distinct HCPCS
10
Medicare allowed
$118,703
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 278 | 112 | $232 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 113 | 53 | $128 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 98 | 62 | $88 | |
99292 |
Critical care, each additional 30 minutes | 84 | 51 | $117 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 47 | 32 | $55 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 32 | 31 | $193 | |
31624 |
Irrigation and suction of lung airways to obtain cells using an endoscope | 22 | 22 | $16 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 22 | 18 | $181 | |
31645 |
Aspiration of initial secretion of lung airway using an endoscope | 19 | 19 | $152 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 18 | 16 | $13 |
In context: peer comparison
Among 9 peers in Walnut Creek Pulmonary Disease Physician, average services per provider: 80. This provider delivers 9.5× the peer median.Open Payments
Industry payments received
All-time total
$706
Transactions
11
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Inspire Medical Systems, INC. | 3 | $341.45 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $133.81 | |
| Actelion Pharmaceuticals US, INC. | 1 | $121.83 | |
| GlaxoSmithKline, LLC. | 2 | $55.16 | |
| AstraZeneca Pharmaceuticals Lp | 2 | $36.42 | |
| Electromed, INC. | 1 | $17.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
24
Patients
17
Total drug cost
$760
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 24 | 17 | $760 |
Hospital affiliations
Frequently asked questions
What is Dr. Anne Grzegorczyk's medical specialty?
Dr. Anne Grzegorczyk practices Pulmonary Disease Physician in Walnut Creek, CA.
Where does Dr. Anne Grzegorczyk practice?
Dr. Anne Grzegorczyk practices at 2700 Ygnacio Valley RD Ste 100, Walnut Creek, CA 945983462. Office phone: 9259393050.
What is Dr. Anne Grzegorczyk's NPI?
Dr. Anne Grzegorczyk's National Provider Identifier (NPI) is 1720434004, issued by NPPES.
Does Dr. Anne Grzegorczyk accept Medicare assignment?
Yes. Dr. Anne Grzegorczyk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Anne Grzegorczyk commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.