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Spencer T Fung, MD

Gastroenterology · Santa Clara

NPI 1669559506

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
4
1 carrier
Offices
2

Offices

2 locations · Permanente Medical Group Inc · 10,928 clinicians in this group

Looking this up.

Plans that list them

4 plans · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Fung’s office at (408) 851-1000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
Kaiser Permanente Dual Complete North P2 (HMO D-SNP)Kaiser PermanenteListedSep 1, 2026
Kaiser Permanente Dual Complete North P23 (HMO D-SNP)Kaiser PermanenteListedSep 1, 2026
Kaiser Permanente Sr Adv Basic Santa Clara (HMO)Kaiser PermanenteListedSep 1, 2026
Kaiser Permanente Sr Adv Enhanced Santa Clara (HMO)Kaiser PermanenteListedSep 1, 2026

California Medical Board record

Licence A54635 · Current

Licensed to practise in California · since 1995 · expires 2028-11-30 · University of California, San Diego School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Original Medicare doctor bills

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Procedures Medicare counted

Procedure volume Medicare published
Upper gastrointestinal (GI) endoscopy for acid reflux1-10None

Drugs they prescribed that Part D paid

$135,604

Pharmacies billed $135,604 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their Part D prescriptions (0 of 841) in 2024. At or below the middle of the specialty; the typical gastroenterology clinician is at 0%.

756 generic and 85 brand-name prescriptions · $135,604 in drug cost · 14 antibiotic prescriptions.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Largest Part D drug costs
Amjevita(Cf)27$23,011$852
Gavilyte-C612$13,827$23
Mesalamine20$8,132$407
Budesonide Dr31$2,665$86
Cholestyramine Light12$923$77
See all 6 drugs
Every Part D drug this clinician prescribed
Amjevita(Cf)27$23,011$852
Gavilyte-C612$13,827$23
Mesalamine20$8,132$407
Budesonide Dr31$2,665$86
Cholestyramine Light12$923$77
Pantoprazole30$327$11

Year by year

Part D prescribing by year
20248416740% (0)10%$135,604
20236534850% (0)16%$135,119
20227465770% (0)23%$189,717
20217075270% (0)23%$203,957
20204383000% (0)27%$59,733
20195634080% (0)17%$119,608
2018355217None43%$96,691
20175494350% (0)11%$94,711
20167746610% (0)10%$92,846
20157516030% (0)11%$82,480
2014997834NoneNone$99,686
20137015460% (0)12%$84,918

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 7 drugs

Part D drugs prescribed in 2023
Lialda25$10,214$409
Gavilyte-C402$8,377$21
Budesonide Dr25$1,990$80
Sulfasalazine17$862$51
Peg-3350 and Electrolytes19$482$25
Famotidine11$462$42
Pantoprazole40$415$10

2022: 7 drugs

Part D drugs prescribed in 2022
Thalomid25$130,823$5,233
Lialda23$9,178$399
Gavilyte-C438$7,820$18
Peg-3350 and Electrolytes91$1,867$21
Sulfasalazine11$513$47
Pantoprazole25$351$14
Ciprofloxacin11$110$10

2021: 8 drugs

Part D drugs prescribed in 2021
Thalomid23$120,357$5,233
Lialda30$14,472$482
Zenpep13$10,593$815
Peg-3350 and Electrolytes205$4,241$21
Gavilyte-C249$3,751$15
Peg 3350-Electrolyte26$702$27
Pantoprazole22$381$17
Famotidine12$130$11

2020: 11 drugs

Part D drugs prescribed in 2020
Lialda16$10,141$634
Zenpep11$5,905$537
Mesalamine13$5,406$416
Gavilyte-C174$3,326$19
Budesonide Ec12$1,300$108
Peg-3350 and Electrolytes41$902$22
Cholestyramine Light12$845$70
Peg 3350-Electrolyte19$513$27
Gavilyte-G11$283$26
Pantoprazole13$243$19
Famotidine11$89$8

2019: 6 drugs

Part D drugs prescribed in 2019
Lialda17$21,142$1,244
Gavilyte-C323$11,526$36
Budesonide Ec19$1,894$100
Gavilyte-G26$630$24
Pantoprazole19$301$16
Omeprazole11$297$27

2018: 5 drugs

Part D drugs prescribed in 2018
Lialda21$36,645$1,745
Gavilyte-C90$3,320$37
Peg 3350-Electrolyte79$2,922$37
Pantoprazole33$621$19
Omeprazole16$413$26

2017: 4 drugs

Part D drugs prescribed in 2017
Lialda21$43,331$2,063
Gavilyte-C391$6,717$17
Pantoprazole17$420$25
Omeprazole13$359$28

2016: 5 drugs

Part D drugs prescribed in 2016
Lialda21$35,194$1,676
Gavilyte-C608$10,431$17
Omeprazole13$487$37
Gavilyte-G18$457$25
Pantoprazole11$272$25

2015: 5 drugs

Part D drugs prescribed in 2015
Lialda29$37,940$1,308
Gavilyte-C575$9,847$17
Ursodiol21$8,058$384
Omeprazole20$1,018$51
Pantoprazole19$433$23

2014: 8 drugs

Part D drugs prescribed in 2014
Lialda24$23,569$982
Gavilyte-C628$10,705$17
Ursodiol21$10,135$483
Carafate20$7,227$361
Peg 3350-Electrolyte97$1,673$17
Gavilyte-G62$1,302$21
Omeprazole18$873$48
Pantoprazole20$467$23

2013: 8 drugs

Part D drugs prescribed in 2013
Lialda15$11,455$764
Gavilyte-C485$8,303$17
Carafate14$4,670$334
Nexium11$4,156$378
Ursodiol17$2,325$137
Omeprazole29$1,359$47
Azathioprine11$547$50
Pantoprazole23$535$23

Money from drug and device companies

$43 in 2024

Industry payments by year
202411None$43
202311None$6
202211None$77

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Boston ScientificExalt Model D$43
1 payment
  • Meals for Exalt Model D · 2024-02-23 · $43
See the published payment
Every published payment
Boston ScientificMeals · 2024-02-23Exalt Model D$43
See earlier years (2023, 2022)

2023: $6

Payments by company in 2023
Micro-tech Endoscopy USALockado$6
1 payment
  • Meals for Lockado · 2023-12-08 · $6

2022: $77

Payments by company in 2022
Boston ScientificExalt Model D$77
1 payment
  • Meals for Exalt Model D · 2022-09-21 · $77

Professional record

NPI
1669559506
Licence
CA A54635California A54635: Current · expires 2028-11-30
Trained
University of California, San Diego School of Medicine, 1994
Gender
Male
More record details
Sole proprietor
No
Medicaid ID
CA 00A546350
Taxonomy
Federal specialty code 207RG0100X (207RG0100X)
Mailing address
1800 Harrison St Fl 7, Oakland, CA, 94612
NPI first listed
2006-10-31
NPI last updated
2021-12-06

This is when the NPI record was last certified, not a medical board exam.

This office lists an electronic records connection.