DR. JOHN GREEN M.D.
NPI 1134501760
Internal Medicine - Cardiovascular Disease in Bethesda, MD

Active since June 19, 2015PECOS EnrolledAccepts Medicare Assignment
4494 PALMER RD N, BETHESDA, MD 20814(301) 295-4500 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 12, 2025, Oct 5, 2023 (2 updates tracked since 2023).

About Dr. John Green M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN GREEN M.D. (NPI 1134501760) is an individual cardiovascular disease provider in Bethesda, Maryland, licensed in Virginia (0101286914) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with The Outer Banks Hospital, Inc, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (2015).

NPPES Registry Identity

NPI1134501760
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. JOHN GREENCredential: M.D.
Location Address4494 PALMER RD NBethesda, MD 20814
Mailing Address8901 Rockville PikeBethesda, MD 20889-0001
Sole ProprietorNo
Medical School CMSUniformed Services Uhs Fe Hebert School Of MedGraduated 2015
Enumeration DateJune 19, 2015
Last NPPES UpdateNovember 12, 20252 updates tracked since enumeration
NPPES CertifiedNovember 12, 2025
✔ NPI 1134501760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in VA · 0101286914
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD2019-0528 (NM)
4494 PALMER RD N, Bethesda, MD 20814

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Green M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729314273
PECOS Enrollment IDI20251106004115
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show John Green reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Surgery
113 GAINSBOROUGH SQ STE 400
Chesapeake, VA 23320
  • Reassigned Medicare billing, Virginia enrollment
  • 158 clinicians in this Medicare group
Hospitalist
1015 UNITY RD
Crossett, AR 71635
  • Reassigned Medicare billing, New Mexico enrollment
  • 114 clinicians in this Medicare group
Emergency Medicine
240 HIGHLAND DR
Many, LA 71449
  • Reassigned Medicare billing, New Mexico enrollment
  • 152 clinicians in this Medicare group
Emergency Medicine
4311 E LOHMAN AVE
Las Cruces, NM 88011
  • Reassigned Medicare billing, New Mexico enrollment
  • 238 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The Outer Banks Hospital, Inc

Critical Access Hospitals · Nags Head, NC
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number341324
Location4800 South Croatan HighwayNags Head, NC 27959 · Dare County
Emergency services Birthing friendly

Sentara Norfolk General Hospital

Acute Care Hospitals · Norfolk, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number490007
Location600 Gresham DrNorfolk, VA 23507 · Norfolk City County
Emergency services Birthing friendly

Chesapeake General Hospital

Acute Care Hospitals · Chesapeake, VA
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number490120
Location736 Battlefield Blvd, NorthChesapeake, VA 23320 · Chesapeake City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20814 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers22 claims22 services$18.64 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers22 claims22 services$100.48 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Registered Nurse (Community Health)
4494 PALMER RD N
BETHESDA, MD 20814
Surgery (Plastic and Reconstructive Surgery)
4494 PALMER RD N
BETHESDA, MD 20814
General Practice
4494 PALMER RD N
BETHESDA, MD 20814
General Practice
4494 PALMER RD N
BETHESDA, MD 20814
Surgery (Surgical Oncology)
4494 PALMER RD N
BETHESDA, MD 20814
Internal Medicine (Allergy & Immunology)
4494 PALMER RD N
BETHESDA, MD 20814
Military Health Care Provider
4494 PALMER RD N, BLDG 19
BETHESDA, MD 20814
Student in an Organized Health Care Education/Training Program
4494 PALMER RD N
BETHESDA, MD 20814

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Green's NPI number?

The NPI number for John Green is 1134501760. It was assigned to this individual provider in the NPPES registry on June 19, 2015.

Where is John Green located?

John Green practices at 4494 Palmer Rd N, Bethesda, MD 20814. The listed phone number is (301) 295-4500.

What is John Green's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is John Green enrolled in Medicare?

Yes. John Green is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for John Green's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Green reassigns Medicare benefits to 4 organizations: Chesapeake Regional Medical Group (Chesapeake, VA), Ess Hospitalist LLC (Crossett, AR), Emergency Staffing Solutions Inc (Many, LA) and Las Cruces Hb Medical Services LLC (Las Cruces, NM). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Green's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Green accept?

Health plans from Blue Cross and Blue Shield of Texas list John Green as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Green affiliated with any hospitals?

According to CMS data, John Green is affiliated with The Outer Banks Hospital, Inc, Sentara Norfolk General Hospital and Chesapeake General Hospital.

When was this NPI record last updated?

The NPPES record for John Green was last updated on November 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.