Dr. Jon Barry Greenfield, MD
- Medicare services, 2022
- 457
- Part D claims, 2024
- 35
- Industry payments
- $519
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 434 S San Vicente Blvd, Los Angeles, CA 90048-4108
- Practice phone
- Call (310) 659-3400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arthur Kreitenberg
Surgical practice · Los Angeles, California
Find Dr. Greenfield's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jon Barry Greenfield is an orthopedic surgeon in West Hollywood, California
Dr. Greenfield practices at Arthur Kreitenberg in Los Angeles, California.
Dr. Greenfield's NPI, 1487644118, was assigned on October 25, 2005. Dr. Greenfield graduated from David Geffen School of Medicine at UCLA in 1973. Dr. Greenfield holds California license G26989.
- NPI
- 1487644118NPI Registry (opens in a new tab)
- NPI enumeration date
- October 25, 2005
- NPI status
- Active
- Practice phone
- (310) 659-3400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jon Barry Greenfield practices in Los Angeles and West Hollywood
Dr. Greenfield's primary practice is Arthur Kreitenberg, at 434 S San Vicente Blvd, Los Angeles, CA 90048-4108. The practice phone is (310) 659-3400. The NPI Registry lists Dr. Greenfield's practice address as 8700 Beverly Blvd, West Hollywood, CA 90048.
- Arthur KreitenbergPrimary434 S San Vicente Blvd, Los Angeles, CA 90048-4108Phone(310) 659-3400
- NPI Registry address8700 Beverly Blvd, West Hollywood, CA 90048 · Los Angeles CountyPhone(310) 659-3400
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Jon Barry Greenfield is affiliated with 1 site of care and 2 medical groups
Dr. Greenfield's primary practice is Arthur Kreitenberg in Los Angeles, California. The medical group on file is Evolution Physical Therapy. Dmand AI also links Dr. Greenfield to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Jon Barry Greenfield's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenfield practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arthur Kreitenberg | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jon Barry Greenfield is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Greenfield's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Greenfield is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Greenfield's licenses on file in 2 states: California and Hawaii.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Hawaii license
Orthopedic surgeons near Dr. Greenfield
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jon Barry Greenfield billed Medicare for 457 services in 2022
CMS data shows 457 Medicare services from Dr. Greenfield across 9 procedure codes in 2022. Medicare paid $16,719 for them. Every service was in an office.
Dr. Greenfield's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 3972022: 18354%
- Drugs given in the office
- 2021: 5162022: 17167%
- Surgery
- 2021: 1502022: 5762%
- Imaging
- 2021: 1112022: 4659%
Dr. Greenfield compared with the California median for orthopedic surgeons, 2022
- Dr. Greenfield
- California median
- Medicare services
- 457vs 68333% below
- Part D claims
- 11vs 7084% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Greenfield's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greenfield and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jon Barry Greenfield's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Greenfield's median patient age at 70, with 68% women.
Dr. Greenfield's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women68%
- Men32%
Source: Dmand AI Patient Panel Data
Dr. Jon Barry Greenfield wrote 35 Medicare Part D claims in 2024
In 2024, Dr. Greenfield wrote 35 Medicare Part D claims. 46% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $99 in total drug cost. In 2022, CMS named 146 claims across 6 drugs.
Dr. Greenfield's Part D claims by kind of drug, 2024
- Generic16 claims46%
- Brand-name19 claims54%
Dr. Greenfield's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1462023: 1192%
Drugs named by CMS: 1 in 2023, 6 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Jon Barry Greenfield received $519 in industry payments from 2016 to 2022
CMS Open Payments shows 44 general payments to Dr. Greenfield from 11 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 97% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $129.
General payments to Dr. Greenfield by program year, 2016 to 2022
General payments to Dr. Greenfield by kind, 2016 to 2022
- Food and beverage$50297%
- Travel and lodging$173%
Companies that paid Dr. Greenfield the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jon Barry Greenfield graduated from David Geffen School of Medicine at UCLA
Dr. Greenfield graduated from David Geffen School of Medicine at UCLA in 1973.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Jon Barry Greenfield accepts plans from 1 insurance carrier
Dr. Greenfield is in network with 1 carrier, including Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
Plan types Dr. Greenfield accepts, by number of carriers
- HMO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jon Barry Greenfield's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jon Barry Greenfield
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jon Barry Greenfield's NPI number?
Dr. Jon Barry Greenfield's NPI number is 1487644118. It was assigned on October 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jon Barry Greenfield?
Dr. Jon Barry Greenfield is an orthopedic surgeon in West Hollywood, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Jon Barry Greenfield practice?
Dr. Greenfield practices at 434 S San Vicente Blvd, Los Angeles, CA 90048-4108. Dr. Greenfield also practices at 8700 Beverly Blvd, West Hollywood, CA 90048. Dr. Greenfield's primary practice is Arthur Kreitenberg in Los Angeles, California. Dmand AI also links Dr. Greenfield to 1 medical group.
What is Dr. Jon Barry Greenfield's office phone number?
The practice phone on file for Dr. Greenfield is (310) 659-3400.
What is Dr. Jon Barry Greenfield's medical license number?
Dr. Greenfield holds California license G26989, one of the licenses on file in 2 states.
Which states has Dr. Jon Barry Greenfield been licensed in?
Dmand AI has state licenses on file for Dr. Greenfield in California (1974 to 2027) and Hawaii (1994 to 1996).
What medical group is Dr. Jon Barry Greenfield part of?
Dr. Greenfield is linked to Evolution Physical Therapy. Dmand AI links Dr. Greenfield to 1 more medical group.
Does Dr. Jon Barry Greenfield accept Medicare?
Yes. CMS data shows Dr. Greenfield billed Medicare for 457 services in 2022.
Is Dr. Jon Barry Greenfield board certified?
Yes. Dr. Greenfield is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Jon Barry Greenfield bill to Medicare?
In 2022, Dr. Greenfield's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99213) and surgery: bones and joints (20610).
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Where did Dr. Jon Barry Greenfield go to medical school?
Dr. Greenfield graduated from David Geffen School of Medicine at UCLA in 1973.
What drugs does Dr. Jon Barry Greenfield prescribe most?
In 2023 Medicare Part D data, Dr. Greenfield's most prescribed drugs by claims were Metformin HCl ER.
Has Dr. Jon Barry Greenfield received payments from drug or device companies?
CMS Open Payments shows $519 in general payments to Dr. Greenfield from 11 companies from 2016 to 2022. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Jon Barry Greenfield been practicing?
Dr. Greenfield graduated from medical school in 1973, 53 years ago.
What insurance does Dr. Jon Barry Greenfield accept?
Dr. Greenfield is in network with 1 carrier, including Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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