JOHN H. GREENFIELD, III M. D. – NPI #1861406506
Orthopaedic Surgery

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Health Care Provider Taxonomy Code for Orthopaedic Surgery

JOHN GREENFIELD, III is an orthopaedic surgeon located in SACRAMENTO, CA. NPPES has assigned the NPI number 1861406506 to JOHN GREENFIELD, III on July 28, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207X00000X from the Health Care Provider Taxonomy code set, which is classified as Orthopaedic Surgery.

The NPI profile was last updated on May 07, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for JOHN GREENFIELD, III below.

NPI Profile for
JOHN H. GREENFIELD, III

NPI Number
1861406506
Enumeration Date

(about 20 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
JOHN H. GREENFIELD, III
Credentials
M. D.
Primary location
1201 ALHAMBRA BLVD STE 400
SACRAMENTO, CA 95816-5243
Phone: (916) 733-5098 Fax: (916) 733-9814
1 Other location(s):
1035 Southcrest Dr
Suite 100
Stockbridge, GA 30281-6118
Phone: (770) 389-9005
Fax: (770) 389-5251
Mailing address
PO BOX 255228
SACRAMENTO, CA 95865-5228
Phone: (800) 470-0071 Fax: (916) 854-6769
Sole Proprietor
No
Updated
Certification Date
May 07, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207X00000X
- Orthopaedic Surgery (Primary)		 CA A91052
174400000X
- Specialist		 GA 052272

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

Endpoint
https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq
Endpoint type
SOAP URL
Endpoint Description
CAREQUALITY
Content Type
OTHER
Affiliation
Y
Endpoint Location
2025 MORSE AVE,
SACRAMENTO, CA 77025-1669

Additional Information

Education
UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS - Graduated 2000
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
JOHN GREENFIELD, III is affiliated with the following medical group(s):
  • HOSPITAL
    • KAISER FOUNDATION HOSPITAL - SACRAMENTO
      2025 MORSE AVENUE
      SACRAMENTO, CA 95825

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.