What is Karen Kovalow-St. John's specialty?

Karen Kovalow-St. John (NPI 1336146281) is a Medicare-billing provider whose primary specialty is Rheumatology in San Luis Obispo, CA.

Where does Karen Kovalow-St. John practice?

Karen Kovalow-St. John practices in San Luis Obispo, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1336146281.

How much does Medicare pay Karen Kovalow-St. John?

Karen Kovalow-St. John (NPI 1336146281) received approximately $1.9M in total Medicare Part B payments, serving 536 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1336146281

Karen Kovalow-St. JohnM.D.

RheumatologySan Luis Obispo, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,083

Unique beneficiaries

—

Total services

107,382

Distinct HCPCS

Medicare payment

$1.4M

Peer benchmark

Total Medicare services vs. 530 Rheumatology providers in CA — top quintile (cohort median 1,833).

PRESCRIBING · PART D · 2024

Total Rx claims

1,320

Beneficiaries

—

Total drug cost

$889K

Distinct drugs

Brand share

19.1%

Top prescribed drugs

Hydroxychloroquine Sulfate279 claims

Prednisone218 claims

Celecoxib127 claims

Alendronate Sodium123 claims

Meloxicam120 claims

QUALITY · MIPS · 2024

Final MIPS score

84.0

Quality

70.7

Cost

68.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.38%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$4K

Payment records

184

By payment type

Food and Beverage$4K

Top paying entities

Food and Beverage$4K

REFERRAL NETWORK

Where Karen Kovalow-St. John'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). 20 inbound referrers · 50 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PORTER HOSPITAL LLC	360	1,498
EDDY, NATALIE	63	197
Jeffrey Huth Diagnostic Radiology · Valparaiso, IN	40	67
Esther Lee Diagnostic Radiology · Valparaiso, IN	32	52
INDIANA UNIVERSITY HEALTH LA PORTE HOSPITAL INC	27	82
Thomas Kay Orthopedic Surgery · Chesterton, IN	27	56
Vivek Mishra Diagnostic Radiology · Laporte, IN	23	31
James Forde Diagnostic Radiology · Valparaiso, IN	21	35
Omar Barakat Diagnostic Radiology · Valparaiso, IN	21	43
Sandeep Sehgal Cardiology · Valparaiso, IN	20	68
Keith Atassi Cardiology · Valparaiso, IN	19	51
SILBERMAN, RICHARD	19	50

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
PORTER HOSPITAL LLC	256	948
ST MARY MEDICAL CENTER INC	83	252
EDDY, NATALIE	47	101
FRANCISCAN HEALTH MICHIGAN CITY	43	178
Jeffrey Huth Diagnostic Radiology · Valparaiso, IN	34	51
Esther Lee Diagnostic Radiology · Valparaiso, IN	32	68
Alverno Laboratories, Llc Clinical Laboratory · Hammond, IN	30	70
Quest Diagnostics Llc Il Clinical Laboratory · Wood Dale, IL	29	64
Divyesh Patel Diagnostic Radiology · Valparaiso, IN	28	60
James Forde Diagnostic Radiology · Valparaiso, IN	26	58
FRANCISCAN HEALTH CROWN POINT	26	49
Keith Atassi Cardiology · Valparaiso, IN	25	72

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