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Dr. John N. Parker, MD
NPI1407937519
- Medicare services, 2021
- 422
- Part D claims, 2021
- 66
- Publications
- 4
- Industry payments
- $388
- Affiliated sites
- 1
- Practice address
- 763 Altos Oaks Dr Suite 1 Suite 1, Los Altos, CA 94024
- Practice phone
- Call (650) 917-9135
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John Parker, MD
Physician office · Los Altos, California
Find Dr. Parker'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. John N. Parker is an orthopedic surgeon in Los Altos, California
Dr. Parker practices at John Parker, MD in Los Altos, California.
Dr. Parker's NPI, 1407937519, was assigned on October 17, 2006. Dr. Parker graduated from George Washington University School of Medicine and Health Sciences in 1979. Dr. Parker holds California license G45374.
NPI and contact details
- NPI
- 1407937519NPI Registry (opens in a new tab)
- NPI enumeration date
- October 17, 2006
- NPI status
- Active
- Practice phone
- (650) 917-9135
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John N. Parker practices at John Parker, MD in Los Altos, California
Dr. Parker's primary practice is John Parker, MD, at 763 Altos Oaks Dr Suite 1 Suite 1, Los Altos, CA 94024. The practice phone is (650) 917-9135.
- John Parker, MD763 Altos Oaks Dr Suite 1 Suite 1, Los Altos, CA 94024Phone(650) 917-9135
Source: Dmand AI Affiliation Data
Dr. John N. Parker is affiliated with 1 site of care
Dr. Parker's primary practice is John Parker, MD in Los Altos, California.
John Parker, MDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John N. Parker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Parker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John Parker, MD | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John N. Parker is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Parker's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Parker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Parker is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Orthopedic surgeons near Dr. Parker
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. John N. Parker billed Medicare for 422 services in 2021
CMS data shows 422 Medicare services from Dr. Parker across 9 procedure codes in 2021. Medicare paid $21,652 for them.
Medicare services, 2021422
Paid by Medicare$21,652
Procedure codes9
Dr. Parker's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 5332021: 14273%
- Drugs given in the office
- 2020: 3482021: 13461%
- Surgery
- 2020: 2512021: 9662%
- Imaging
- 2020: 1622021: 5069%
Where Dr. Parker's Medicare services took place, 2021
- In an office40897%
- In a facility143%
Dr. Parker compared with the California median for orthopedic surgeons, 2021
- Dr. Parker
- California median
- Medicare services
- 422vs 68338% below
- Part D claims
- 66vs 706% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Parker's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Parker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Parker and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John N. Parker's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Parker's median patient age at 63, with 65% women.
Dr. Parker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. John N. Parker wrote 66 Medicare Part D claims in 2021
In 2021, Dr. Parker wrote 66 Medicare Part D claims. They cover 4 drugs, with $630 in total drug cost. In 2020, CMS named 260 claims across 9 drugs.
Part D claims, 202166
Drugs named by CMS4
Total drug cost$630
Dr. Parker's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 2602021: 6675%
Drugs named by CMS: 4 in 2021, 9 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John N. Parker has 4 publications on record
Dmand AI links 4 papers to Dr. Parker, published from 2010 to 2011. 2010 was the busiest year, with 2. The most frequent topics are Research and Science. Dr. Parker has published most often in Nature.
Papers4
Years published2010 to 2011
Topics Dr. Parker writes about most
- Research
- Science
Recent publications by Dr. Parker
Administrative PersonnelBiomedical ResearchCooperative Behavior
GovernmentHistory, 20th CenturyHistory, 21st Century
See who Dr. Parker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Parker works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John N. Parker received $388 in industry payments from 2016 to 2017
CMS Open Payments shows 4 general payments to Dr. Parker from 4 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Biogen, Inc. paid the most, $160.
General payments to Dr. Parker by program year, 2016 to 2017
Companies that paid Dr. Parker the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John N. Parker graduated from George Washington University School of Medicine and Health Sciences
Dr. Parker graduated from George Washington University School of Medicine and Health Sciences in 1979.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Sources for Dr. John N. Parker'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. John N. Parker
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. John N. Parker's NPI number?
Dr. John N. Parker's NPI number is 1407937519. It was assigned on October 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John N. Parker?
Dr. John N. Parker is an orthopedic surgeon in Los Altos, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John N. Parker practice?
Dr. Parker practices at 763 Altos Oaks Dr Suite 1 Suite 1, Los Altos, CA 94024. Dr. Parker's primary practice is John Parker, MD in Los Altos, California.
What is Dr. John N. Parker's office phone number?
The practice phone on file for Dr. Parker is (650) 917-9135.
What is Dr. John N. Parker's medical license number?
Dr. Parker holds California license G45374.
Does Dr. John N. Parker accept Medicare?
Yes. CMS data shows Dr. Parker billed Medicare for 422 services in 2021.
Is Dr. John N. Parker board certified?
Yes. Dr. Parker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. John N. Parker bill to Medicare?
In 2021, Dr. Parker's most billed Medicare services were injected or infused drug (J1030), office visit, established patient (99213) and surgery: bones and joints (20610).
Where did Dr. John N. Parker go to medical school?
Dr. Parker graduated from George Washington University School of Medicine and Health Sciences in 1979.
What drugs does Dr. John N. Parker prescribe most?
In 2021 Medicare Part D data, Dr. Parker's most prescribed drugs by claims were Diclofenac Sodium, Hydrocodone-Acetaminophen and Tramadol HCl.
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Has Dr. John N. Parker received payments from drug or device companies?
CMS Open Payments shows $388 in general payments to Dr. Parker from 4 companies from 2016 to 2017. The largest total came from Biogen, Inc.
How long has Dr. John N. Parker been practicing?
Dr. Parker graduated from medical school in 1979, 47 years ago.
Does Dr. John N. Parker do research?
Dmand AI links 4 publications to Dr. Parker, published from 2010 to 2011.
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