What is Charles Hammer's specialty?

Charles Hammer (NPI 1063456226) is a Medicare-billing provider whose primary specialty is Dermatology in Littleton, NH.

Where does Charles Hammer practice?

Charles Hammer practices in Littleton, NH, based on the location reported in the CMS Medicare provider datasets for NPI 1063456226.

How much does Medicare pay Charles Hammer?

Charles Hammer (NPI 1063456226) received approximately $169K in total Medicare Part B payments, serving 1,043 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1063456226

Charles HammerM.D.

DermatologyLittleton, NHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,024

Unique beneficiaries

—

Total services

3,309

Distinct HCPCS

Medicare payment

$154K

Peer benchmark

Total Medicare services vs. 68 Dermatology providers in NH — above median (cohort median 2,873).

PRESCRIBING · PART D · 2024

Total Rx claims

1,174

Beneficiaries

—

Total drug cost

$2.0M

Distinct drugs

Brand share

29.1%

Top prescribed drugs

Triamcinolone Acetonide190 claims

Ketoconazole87 claims

Fluorouracil87 claims

Methotrexate Sodium76 claims

Secukinumab60 claims

QUALITY · MIPS · 2024

Final MIPS score

79.7

Quality

53.5

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.20%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Charles Hammer'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). 29 inbound referrers · 50 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARY HITCHCOCK MEMORIAL HOSPITAL	145	326
LITTLETON HOSPITAL ASSOCIATION	117	231
NORTHEASTERN VERMONT REGIONAL HOSPITAL, INC	98	578
WEEKS MEDICAL CENTER	77	212
NORTH COUNTRY HOSPITAL & HEALTH CENTER INC	48	141
ANDROSCOGGIN VALLEY HOSPITAL, INC.	42	88
NORTH COUNTRY HOSPITAL & HEALTH CENTER INC	40	118
WEEKS MEDICAL CENTER	39	66
WEEKS MEDICAL CENTER	22	49
ZIOBROWSKI, THOMAS	20	41
Wendy Muello Internal Medicine · Jefferson, NH	19	53
POLLAK, EMIL	18	43

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
NORTHEASTERN VERMONT REGIONAL HOSPITAL INC.	328	686
LITTLETON HOSPITAL ASSOCIATION	123	273
NORTHEASTERN VERMONT REGIONAL HOSPITAL, INC	113	664
MARY HITCHCOCK MEMORIAL HOSPITAL	110	223
NORTHERN COUNTIES HEALTH CARE INC	82	198
NORTHEASTERN VERMONT REGIONAL HOSPITAL INC	72	193
WEEKS MEDICAL CENTER	63	147
NORTH COUNTRY HOSPITAL & HEALTH CENTER INC	44	113
NORTH COUNTRY HOSPITAL & HEALTH CENTER INC	42	107
ANDROSCOGGIN VALLEY HOSPITAL, INC.	33	71
COTTAGE HOSPITAL	31	74
WEEKS MEDICAL CENTER	28	35

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