Allison K Duffy, MD
Anesthesiology · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location · G2 Anesthesia PC · 104 clinicians in this group
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Duffy’s office at (408) 559-2011 to ask if they take your plan before you enroll.
California Medical Board record
Licence A98122 · Current
Licensed to practise in California · since 2006 · expires 2028-06-30 · University of Wisconsin Medical School.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$29,614
Medicare paid this office $29,614 for 240 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Anesthesia for other procedure on large bowel using an endoscope | 77 | $8,823 | $115 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 56 | $6,412 | $114 |
| Anesthesia for procedure on small and large bowel using an endoscope | 45 | $6,313 | $140 |
| Anesthesia for lens surgery | 28 | $3,175 | $113 |
| Anesthesia for exam of colon using an endoscope | 21 | $2,380 | $113 |
Who their Medicare patients are
240 Original Medicare patients in 2024. Average age 74 · Women 53% · Also on Medicaid 13% · Health risk score 0.91. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 64% · Diabetes 25% · Chronic kidney disease 19% · Cancer 19% · Atrial fibrillation 17% · Coronary heart disease 15% · Depression 12% · COPD 10% · Heart failure 7% · Stroke 5%.
The office billed $434,510, Medicare allowed $36,056 and paid $29,614; for 242 services of 13 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Year by year
| 2024 | 240 | 242 | 74 | 0.91 | $434,510 | $29,614 |
| 2023 | 224 | 234 | 74 | 0.85 | $353,000 | $29,778 |
| 2022 | 263 | 275 | 74 | 0.88 | $512,823 | $38,153 |
| 2021 | 200 | 202 | 74 | 0.93 | $403,509 | $29,507 |
| 2020 | 183 | 189 | 72 | 1.45 | $382,322 | $27,810 |
| 2019 | 288 | 300 | 73 | 1.07 | $603,435 | $44,354 |
| 2018 | 327 | 332 | 74 | 1.11 | $605,281 | $43,385 |
| 2017 | 263 | 266 | 73 | 1.05 | $511,508 | $38,355 |
| 2016 | 209 | 224 | 74 | 1.50 | $450,688 | $34,893 |
| 2015 | 170 | 192 | 74 | 1.86 | $387,185 | $31,668 |
| 2014 | 153 | 158 | 72 | 2.10 | $267,707 | $27,510 |
| 2013 | 159 | 165 | 73 | 1.16 | $175,998 | $26,579 |
Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.
See the services billed each year
2023: 6 services
| Anesthesia for lens surgery | 76 | $9,642 | $113 |
| Anesthesia for other procedure on large bowel using an endoscope | 41 | $4,467 | $109 |
| Anesthesia for procedure on small and large bowel using an endoscope | 17 | $2,336 | $130 |
| Anesthesia for other procedure on eye | 12 | $1,772 | $148 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 13 | $1,438 | $111 |
| Anesthesia for exam of colon using an endoscope | 14 | $1,386 | $99 |
2022: 5 services
| Anesthesia for other procedure on large bowel using an endoscope | 82 | $10,789 | $130 |
| Anesthesia for procedure on small and large bowel using an endoscope | 47 | $6,946 | $148 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 44 | $5,260 | $117 |
| Anesthesia for lens surgery | 32 | $3,884 | $121 |
| Anesthesia for exam of colon using an endoscope | 26 | $2,934 | $113 |
2021: 5 services
| Anesthesia for other procedure on large bowel using an endoscope | 52 | $6,970 | $134 |
| Anesthesia for procedure on small and large bowel using an endoscope | 36 | $5,378 | $149 |
| Anesthesia for exam of colon using an endoscope | 32 | $3,838 | $120 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 28 | $3,511 | $125 |
| Anesthesia for lens surgery | 14 | $1,688 | $121 |
2020: 5 services
| Anesthesia for other procedure on large bowel using an endoscope | 56 | $7,514 | $134 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 35 | $4,349 | $124 |
| Anesthesia for procedure on small and large bowel using an endoscope | 25 | $3,741 | $150 |
| Anesthesia for exam of colon using an endoscope | 22 | $2,637 | $120 |
| Anesthesia for lens surgery | 11 | $1,290 | $117 |
2019: 5 services
| Anesthesia for procedure on small and large bowel using an endoscope | 67 | $9,956 | $149 |
| Anesthesia for other procedure on large bowel using an endoscope | 71 | $8,938 | $126 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 45 | $5,313 | $118 |
| Anesthesia for exam of colon using an endoscope | 38 | $4,389 | $113 |
| Anesthesia for lens surgery | 11 | $1,336 | $121 |
2018: 5 services
| Anesthesia for procedure on small and large bowel using an endoscope | 60 | $8,583 | $143 |
| Anesthesia for exam of colon using an endoscope | 66 | $7,546 | $114 |
| Anesthesia for other procedure on large bowel using an endoscope | 57 | $7,150 | $125 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 48 | $5,554 | $116 |
| Anesthesia for lens surgery | 45 | $5,397 | $120 |
2017: 2 services
| Anesthesia for procedure on lower intestine using an endoscope | 150 | $20,431 | $136 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 67 | $7,954 | $117 |
2016: 3 services
| Anesthesia for procedure on lower intestine using an endoscope | 97 | $12,664 | $131 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 34 | $3,916 | $115 |
| Anesthesia for x-ray exam of arteries and veins using contrast | 15 | $2,780 | $174 |
2015: 3 services
| Anesthesia for procedure on lower intestine using an endoscope | 39 | $4,904 | $126 |
| Anesthesia for lens surgery | 19 | $2,523 | $126 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 17 | $2,275 | $134 |
2014: 3 services
| Anesthesia for procedure on lower intestine using an endoscope | 33 | $3,926 | $119 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 30 | $3,678 | $123 |
| Anesthesia for other x-ray on vein or lymph system | 15 | $2,814 | $176 |
2013: 3 services
| Anesthesia for procedure on lower intestine using an endoscope | 59 | $7,318 | $124 |
| Anesthesia for lens surgery | 24 | $2,816 | $117 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 15 | $1,756 | $117 |
Money from drug and device companies
$38 in 2025
| 2025 | 1 | 1 | None | $38 |
| 2023 | 1 | 1 | None | $28 |
| 2019 | 3 | 3 | None | $48 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Janssen Biotech | Tremfya | $38 | 1 payment
|
See the published payment
| Janssen Biotech | Meals · 2025-04-24 | Tremfya | $38 |
See earlier years (2023, 2019)
2023: $28
| Sanofi Pasteur | Beyfortus | $28 | 1 payment
|
2019: $48
| AbbVie | Humira | $20 | 1 payment
|
| Boston Scientific | General Endochoice | $16 | 1 payment
|
| Salix Pharmaceuticals a division of Bausch Health US | Xifaxan | $11 | 1 payment
|
Professional record
- NPI
- 1548484835
- Licence
- CA A98122California A98122: Current · expires 2028-06-30
- Trained
- University of Wisconsin School of Medicine, 2005
- Group
- G2 Anesthesia PC
- Gender
- Female
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 207L00000X (207L00000X)
- Mailing address
- 4935 Proctor Ave, Oakland, CA, 94618
- NPI first listed
- 2007-04-11
- NPI last updated
- 2009-03-29
This is when the NPI record was last certified, not a medical board exam.