Tammy S Hwang, NP
Nurse Practitioner · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 3
- 2 carriers
- Offices
- 3
Offices
3 locations · Sutter Bay Medical Foundation · Indian Health Center of Santa Clara Valley
Plans that list them
3 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Tammy S Hwang’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
3 of 3 plans
| Anthem Full Dual Advantage Aligned (HMO D-SNP) | Anthem Blue Cross | Listed | Oct 3, 2026 |
| Anthem Medicare Advantage (HMO-POS) | Anthem Blue Cross | Listed | Oct 3, 2026 |
| Anthem Prime (HMO-POS) | Anthem Blue Cross Partnership Plan | Listed | Oct 3, 2026 |
Original Medicare doctor bills
$1,131
Medicare paid this office $1,131 for 13 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Who their Medicare patients are
13 Original Medicare patients in 2024. Average age 69 · 85 and older 0% · Women 100% · Health risk score 0.72. At or below the middle of the specialty; the typical nurse practitioner clinician is at 1.42.
The office billed $4,719, Medicare allowed $1,529 and paid $1,131; for 15 services of 6 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 | 13 | 15 | 69 | 0.72 | $4,719 | $1,131 |
| 2023 | 11 | 12 | 71 | 0.81 | $3,073 | $775 |
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.
Medicaid work
$146,188 in 2023
Medicaid paid $146,188 for 1,587 billed services this clinician did in 2023, up to 122 people in a month for one service.
Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.
| Clinic visit/encounter, all-inclusive | 675 | $144,770 |
| Short return visit (20+ min) | 641 | $1,418 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; non-automated, without microscopy | 14 | $0 |
| Short return visit | 166 | $0 |
| Return visit (30+ min) | 58 | $0 |
| Service | 33 | $0 |
| 2023 | 1,587 | 6 | 122 | $146,188 |
| 2022 | 3,096 | 11 | 149 | $250,791 |
| 2021 | 4,672 | 6 | 150 | $376,778 |
| 2020 | 2,258 | 8 | 147 | $190,190 |
| 2019 | 639 | 4 | 40 | $70,621 |
| 2018 | 385 | 2 | 88 | $80,120 |
See the largest Medicaid services in earlier years
2022
| Clinic visit/encounter, all-inclusive | 1,219 | $249,834 |
| Short return visit (20+ min) | 1,086 | $957 |
| ANTEPARTUM CARE ONLY 4-6 VISITS | 34 | $0 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; non-automated, without microscopy | 90 | $0 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 109 | $0 |
| OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES | 22 | $0 |
| Short return visit | 429 | $0 |
| Return visit (30+ min) | 22 | $0 |
| Federally qualified health center (fqhc) visit, established patient; a medically-necessary, face-to-face encounter (one-on-one) between an established patient and a fqhc practitioner during which time one or more fqhc services are rendered and includes a typical bundle of medicare-covered services that would be furnished per diem to a patient receiving a fqhc visit | 15 | $0 |
| Payment for a telehealth distant site service furnished by a rural health clinic (rhc) or federally qualified health center (fqhc) only | 49 | $0 |
| Service | 21 | $0 |
2021
| Clinic visit/encounter, all-inclusive | 1,814 | $375,957 |
| Short return visit (20+ min) | 1,403 | $803 |
| Short return visit | 1,002 | $18 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 137 | $0 |
| Return visit (30+ min) | 48 | $0 |
| Payment for a telehealth distant site service furnished by a rural health clinic (rhc) or federally qualified health center (fqhc) only | 268 | $0 |
2020
| Clinic visit/encounter, all-inclusive | 924 | $190,064 |
| Short return visit (20+ min) | 443 | $72 |
| Short return visit | 406 | $54 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 22 | $0 |
| Telephone evaluation and management service by a physician or other qualified health care professional who may report evaluation and management services provided to an established patient, parent, or guardian not originating from a related E/M service provided within the previous 7 days nor leading to an E/M service or procedure within the next 24 hours or soonest available appointment; 5-10 minutes of medical discussion | 109 | $0 |
| Telephone evaluation and management service by a physician or other qualified health care professional who may report evaluation and management services provided to an established patient, parent, or guardian not originating from a related E/M service provided within the previous 7 days nor leading to an E/M service or procedure within the next 24 hours or soonest available appointment; 11-20 minutes of medical discussion | 72 | $0 |
| Federally qualified health center (fqhc) visit, established patient; a medically-necessary, face-to-face encounter (one-on-one) between an established patient and a fqhc practitioner during which time one or more fqhc services are rendered and includes a typical bundle of medicare-covered services that would be furnished per diem to a patient receiving a fqhc visit | 23 | $0 |
| Payment for a telehealth distant site service furnished by a rural health clinic (rhc) or federally qualified health center (fqhc) only | 259 | $0 |
2019
| Clinic visit/encounter, all-inclusive | 339 | $70,621 |
| Short return visit (20+ min) | 140 | $0 |
| Administration of influenza virus vaccine | 13 | $0 |
| Federally qualified health center (fqhc) visit, established patient; a medically-necessary, face-to-face encounter (one-on-one) between an established patient and a fqhc practitioner during which time one or more fqhc services are rendered and includes a typical bundle of medicare-covered services that would be furnished per diem to a patient receiving a fqhc visit | 147 | $0 |
2018
| Clinic visit/encounter, all-inclusive | 372 | $74,569 |
| Short return visit (20+ min) | 13 | $5,551 |
Money from drug and device companies
$18 in 2024
A payment is not proof that care is biased.
| Hologic Sales and Service | Acessa Provu System | $18 | 1 payment
|
See the published payment
| Hologic Sales and Service | Meals · 2024-11-15 | Acessa Provu System | $18 |
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 84.9 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1639681513
- Licence
- CA 95007792
- Group
- Sutter Bay Medical Foundation · Indian Health Center of Santa Clara Valley
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 363LF0000X (363LF0000X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2017-10-31
- NPI last updated
- 2025-06-05
- NPI record certified
- 2025-06-05
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 1333 Meridian Ave, San Jose, CA, 95125 · 1642 E Capitol Expy, San Jose, CA, 95121 · 2039 Forest Ave Ste 105, San Jose, CA, 95128 · 455 Oconnor Dr Ste 200, San Jose, CA, 95128