What is David Chappell's specialty?

David Chappell (NPI 1598732463) is a Medicare-billing provider whose primary specialty is Endocrinology in Petaluma, CA.

Where does David Chappell practice?

David Chappell practices in Petaluma, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1598732463.

How much does Medicare pay David Chappell?

David Chappell (NPI 1598732463) received approximately $136K in total Medicare Part B payments, serving 203 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1598732463

David ChappellM.D.

PRACTICEDAVID A CHAPPELL MD, MEDICAL CORPORATIONSee all providers at this practice →

EndocrinologyPetaluma, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

509

Unique beneficiaries

—

Total services

2,204

Distinct HCPCS

Medicare payment

$129K

Peer benchmark

Total Medicare services vs. 633 Endocrinology providers in CA — above median (cohort median 1,164).

PRESCRIBING · PART D · 2024

Total Rx claims

3,208

Beneficiaries

—

Total drug cost

$767K

Distinct drugs

Brand share

29.6%

Top prescribed drugs

Tirzepatide216 claims

Potassium Chloride215 claims

Levothyroxine Sodium214 claims

Atorvastatin Calcium125 claims

Rosuvastatin Calcium95 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Education$95

Top paying entities

Food and Beverage$2K

Education$95

REFERRAL NETWORK

Where David Chappell'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). 17 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORCAL HEALTHCONNECT LLC	116	415
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC	61	196
SUTTER BAY HOSPITALS	32	145
NPI 1316037856	20	47
Rajesh Ranadive Internal Medicine · Petaluma, CA	19	57
MARIN GENERAL HOSPITAL	19	44
Nikola Lozanov Family Practice · Petaluma, CA	17	29
SUTTER WEST BAY MEDICAL FOUNDATION	17	83
James Leoni Family Practice · Petaluma, CA	17	67
UKIAH ADVENTIST HOSPITAL	14	54
Rajina Ranadive Internal Medicine · Petaluma, CA	14	37
Michael Johnson Podiatry · Petaluma, CA	14	49

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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