What is Anne Chang's specialty?

Anne Chang (NPI 1356378111) is a Medicare-billing provider whose primary specialty is Internal Medicine in San Francisco, CA.

Where does Anne Chang practice?

Anne Chang practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1356378111.

How much does Medicare pay Anne Chang?

Anne Chang (NPI 1356378111) received approximately $49K in total Medicare Part B payments, serving 255 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1356378111

Anne ChangM.D.

Internal MedicineSan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

536

Unique beneficiaries

—

Total services

728

Distinct HCPCS

Medicare payment

$46K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — above median (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

4,558

Beneficiaries

—

Total drug cost

$251K

Distinct drugs

Brand share

13.6%

Top prescribed drugs

Atorvastatin Calcium353 claims

Amlodipine Besylate302 claims

Levothyroxine Sodium225 claims

Rosuvastatin Calcium205 claims

Hydrochlorothiazide175 claims

QUALITY · MIPS · 2024

Final MIPS score

84.9

Quality

81.1

Cost

71.5

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.42%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Anne Chang's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 6 inbound referrers · 18 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Gordon Fung Cardiology · San Francisco, CA	34	106
Deborah Chen Internal Medicine · Boston, MA	27	88
Linda Dulong Nurse Practitioner · San Francisco, CA	27	68
Derek Sun Diagnostic Radiology · San Francisco, CA	25	73
Judith Walsh Internal Medicine · San Francisco, CA	18	60
Daria Motamedi Diagnostic Radiology · San Francisco, CA	16	50

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
UNIVERSITY OF CALIFORNIA, SAN FRANCISCO	430	3,208
Linda Dulong Nurse Practitioner · San Francisco, CA	67	164
Rachel Wheeler Nurse Practitioner · San Francisco, CA	44	97
GALVIN, HELEN	37	99
Daria Motamedi Diagnostic Radiology · San Francisco, CA	25	94
Gordon Fung Cardiology · San Francisco, CA	23	74
Lynne Steinbach Diagnostic Radiology · San Francisco, CA	21	76
Derek Sun Diagnostic Radiology · San Francisco, CA	20	55
Deborah Chen Internal Medicine · Boston, MA	20	65
Molly Heublein Internal Medicine · San Francisco, CA	16	58
SUTTER BAY HOSPITALS	14	40
David Claman Pulmonary Disease · San Francisco, CA	13	46

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events