STEPHEN JOHN ELLWOOD MD
Accepted Insurance for NPI 1760986913
Anesthesiology in Boston, MA

Active since March 22, 2018PECOS EnrolledAccepts Medicare Assignment
75 FRANCIS STREET, BOSTON, MA 02115(617) 732-5500 Get Directions

NPPES record last updated: August 31, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 31, 2023, May 17, 2022, Mar 22, 2018 (3 updates tracked since 2018).

Accepted Insurance & Health Plans Health Insurance Marketplace

Marketplace plan participation on file for this provider · 2026 plan year

STEPHEN JOHN ELLWOOD MD, a anesthesiology provider in Boston, MA, is listed as in-network for 22 health insurance plans from Oscar Health. This list is compiled from the CMS Health Insurance Marketplace public use files for the 2026 plan year.

Verify before you schedule: insurance networks change throughout the plan year. Confirm coverage directly with your insurance company or this practice’s billing office before booking an appointment.
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Insurance Company
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Plan Options
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Network Type
22 plans · 22 plan IDs · 2026 plan year

Oscar Health

22 plans · Individual market · listed as Preferred

Bronze Classic 4700 Guided Care HMO $4700 $70

BronzeHMOGeorgia
Plan ID58081GA0010060

Bronze Classic 4700 HMO $4700 $70

BronzeHMOGeorgia
Plan ID58081GA0010024

Bronze Classic Saver Plus Guided Care HMO $8000 $0

BronzeHMOGeorgia
Plan ID58081GA0010061

Bronze Classic Saver Plus HMO $8000 $0

BronzeHMOGeorgia
Plan ID58081GA0010021

Bronze Classic Standard Guided Care HMO $7500 $50

BronzeHMOGeorgia
Plan ID58081GA0010056

Bronze Classic Standard HMO $7500 $50

BronzeHMOGeorgia
Plan ID58081GA0010050

Bronze Elite Saver Plus HMO $0 $50

BronzeHMOGeorgia
Plan ID58081GA0010005

Bronze Simple 2 Guided Care HMO $9150 10%

BronzeHMOGeorgia
Plan ID58081GA0010062

Bronze Simple 2 HMO $9150 10%

BronzeHMOGeorgia
Plan ID58081GA0010051

Bronze Simple Breathe Easy with Enhanced COPD Benefits HMO $5500 $50

BronzeHMOGeorgia
Plan ID58081GA0010069

Bronze Simple Diabetes HMO $5500 $50

BronzeHMOGeorgia
Plan ID58081GA0010067

Buena Salud Bronce Estandar Clasico HMO $7500 $50

HMOGeorgia
Plan ID58081GA0010059

Buena Salud Plateado Estandar Clasico HMO $6000 $40

HMOGeorgia
Plan ID58081GA0010055

Gold Classic Standard HMO $2000 $30

GoldHMOGeorgia
Plan ID58081GA0010053

Gold Elite Saver Plus HMO $1000 $10

GoldHMOGeorgia
Plan ID58081GA0010035

Silver Classic Standard Guided Care HMO $6000 $40

SilverHMOGeorgia
Plan ID58081GA0010057

Silver Classic Standard HMO $6000 $40

SilverHMOGeorgia
Plan ID58081GA0010052

Silver Simple Breathe Easy with Enhanced COPD Benefits HMO $6200 $0

SilverHMOGeorgia
Plan ID58081GA0010068

Silver Simple Diabetes HMO $6500 $0

SilverHMOGeorgia
Plan ID58081GA0010045

Silver Simple Saver Guided Care HMO $5750 $10

SilverHMOGeorgia
Plan ID58081GA0010063

Silver Simple Saver HMO $5750 $10

SilverHMOGeorgia
Plan ID58081GA0010025

Silver Simple Women's Health with Menopause Benefits HMO $6000 $0

SilverHMOGeorgia
Plan ID58081GA0010087
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Coverage Questions FAQs

Common questions about this provider’s insurance participation, answered from the CMS Health Insurance Marketplace and Medicare enrollment files.

What insurance does STEPHEN JOHN ELLWOOD MD accept?

Marketplace files for the 2026 plan year list STEPHEN JOHN ELLWOOD MD as in-network for 22 plans from Oscar Health. The full list above shows each plan's metal level, network type, and plan IDs.

Is STEPHEN JOHN ELLWOOD MD enrolled in Medicare?

Yes. CMS enrollment files show this provider accepts Medicare assignment, meaning they agree to accept the Medicare-approved amount as full payment for covered services. The provider is also enrolled in PECOS, which certifies them to order, refer, and prescribe for Medicare beneficiaries.

What network types does STEPHEN JOHN ELLWOOD MD participate in?

The accepted plans include 22 HMO plans. HMO (Health Maintenance Organization) plans cover care from network providers and typically require a primary care referral for specialists.

Where does this insurance data come from and how current is it?

Plan participation is compiled from the official CMS Health Insurance Marketplace public use files for the 2026 plan year and refreshed as CMS publishes updated files. Networks change during the year, so always verify coverage with the insurance company or the provider's office before scheduling care.