Am J Orthop (Belle Mead NJ)
Muscle, SkeletalRange of Motion, ArticularReoperation
Dr. Robert John Purchase, MD
NPI1750596326PAC ID5991887622
- Medicare services, 2024
- 352
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 14
- Publications
- 4
- Hospital affiliations
- 3
- Practice address
- 2100 Webster St, San Francisco, CA 94115
- Practice phone
- Call (415) 353-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Robert Purchase MD Inc.
San Francisco, California
Find Dr. Purchase'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. Robert John Purchase is an orthopedic surgeon in San Francisco, California
Dr. Purchase practices at Robert Purchase MD Inc. in San Francisco, California.
Dr. Purchase's NPI, 1750596326, was assigned on May 14, 2007. Dr. Purchase graduated from Lewis Katz School of Medicine in 2002. Dr. Purchase holds California license A97653.
NPI and contact details
- NPI
- 1750596326NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991887622
- NPI enumeration date
- May 14, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 353-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert John Purchase practices at Robert Purchase MD Inc. in San Francisco, California
Dr. Purchase's primary practice is Robert Purchase MD Inc., at 2100 Webster St, San Francisco, CA 94115 in San Francisco County. The practice phone is (415) 353-6400.
- Robert Purchase MD Inc.2100 Webster St, San Francisco, CA 94115 · San Francisco CountyPhone(415) 353-6400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert John Purchase is affiliated with 5 sites of care
Dr. Purchase's primary practice is Robert Purchase MD Inc. in San Francisco, California. Dr. Purchase is also affiliated with UCSF Health Hyde Hospital. Dmand AI also links Dr. Purchase to 2 more hospitals and 1 physician office, each named with a free account.
Robert Purchase MD Inc.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert John Purchase's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Purchase practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Robert Purchase MD Inc. | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Purchase practices
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Dr. Robert John Purchase is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Purchase's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Purchase is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Purchase's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists arthritis, bursitis, joint arthropathy, joint pain, knee injury, rotator cuff injury, shoulder arthroscopy/rotator cuff repair and tendon and ligament injury among the conditions Dr. Purchase treats.
Orthopedic surgeons near Dr. Purchase
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. Robert John Purchase billed Medicare for 352 services in 2024
CMS data shows 352 Medicare services from Dr. Purchase across 5 procedure codes in 2024, for 109 Medicare patients. Medicare paid $23,153 for them.
Medicare services, 2024352
Medicare patients109
Paid by Medicare$23,153
Procedure codes5
Dr. Purchase's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2362024: 20911%
- Surgery
- 2023: 982024: 10911%
- Imaging
- 2023: 322024: 346%
Where Dr. Purchase's Medicare services took place, 2024
- In an office27879%
- In a facility7421%
Dr. Purchase compared with the California median for orthopedic surgeons, 2024
- Dr. Purchase
- California median
- Medicare services
- 352vs 68348% below
- Medicare patients
- 109vs 21549% below
- Part D claims
- 24vs 7066% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Purchase's most billed Medicare procedure codes, 2024
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. Purchase?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Purchase and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert John Purchase treated 109 Medicare patients in 2024, average age 76
CMS counts 109 Medicare patients who saw Dr. Purchase in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Purchase's median patient age at 70, with 49% women.
Medicare patients, 2024109
Average age76
Average risk score0.83
Dr. Purchase's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Purchase's Medicare patients by sex, 2024
- Women6257%
- Men4743%
Chronic conditions among Dr. Purchase's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure56%
- Anxiety20%
- Mood disorders20%
- Depression18%
- Cancer17%
- Ischemic heart disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Purchase'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
- Women49%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert John Purchase wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Purchase wrote 14 Medicare Part D claims. 100% of them were for generic drugs. They cover 2 drugs, with $274 in total drug cost. In 2018, CMS named 19 claims across 1 drug.
Part D claims, 202414
Drugs named by CMS2
Total drug cost$274
Dr. Purchase's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 192019: 2426%
Drugs named by CMS: 2 in 2019, 1 in 2018.
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
Dr. Robert John Purchase ranks in the 48th percentile for upper limb (arm) arthroscopy (minimally invasive joint repair) in Medicare
Dr. Purchase accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Purchase, more than 48% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Purchase ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 48th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert John Purchase has 4 publications on record
Dmand AI links 4 papers to Dr. Purchase. The most frequent topics are Shoulder Joint, Arthroscopy and Range of Motion, Articular. Dr. Purchase has published most often in Arthroscopy. Dr. Purchase's most frequent co-authors are Kenneth McRae Rogers, MD and Allen Y. Tham, MD.
Papers4
Topics Dr. Purchase writes about most
- Shoulder Joint
- Arthroscopy
- Range of Motion, Articular
Dr. Purchase's most frequent co-authors
Recent publications by Dr. Purchase
J Long Term Eff Med Implants
Anterior Cruciate LigamentBone-Patellar Tendon-Bone GraftingPolyethylenes
ArthroscopyJoint CapsuleJoint Instability
Arthroscopy
AnthropometryArthrometry, ArticularArthroscopy
See who Dr. Purchase researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Purchase 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. Robert John Purchase received $11,245 in industry payments from 2016 to 2025
CMS Open Payments shows 75 general payments to Dr. Purchase from 18 drug and device companies from 2016 to 2025. Education make up the largest share, 41% of the total. Evolution Surgical, Inc paid the most, $4,648.
General payments to Dr. Purchase by program year, 2016 to 2025
General payments to Dr. Purchase by kind, 2016 to 2025
$11.2Kin total
- Education$4,58641%
- Travel and lodging$4,27038%
- Food and beverage$2,38921%
Companies that paid Dr. Purchase the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert John Purchase graduated from Lewis Katz School of Medicine
Dr. Purchase graduated from Lewis Katz School of Medicine in 2002.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Robert John Purchase accepts plans from 14 insurance carriers
Dr. Purchase is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Purchase accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert John Purchase'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| 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. Robert John Purchase
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. Robert John Purchase's NPI number?
Dr. Robert John Purchase's NPI number is 1750596326. It was assigned on May 14, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert John Purchase?
Dr. Robert John Purchase is an orthopedic surgeon in San Francisco, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Robert John Purchase practice?
Dr. Purchase practices at 2100 Webster St, San Francisco, CA 94115. Dr. Purchase's primary practice is Robert Purchase MD Inc. in San Francisco, California. Dmand AI also links Dr. Purchase to 2 hospitals and 1 physician office.
What is Dr. Robert John Purchase's office phone number?
The practice phone on file for Dr. Purchase is (415) 353-6400.
What is Dr. Robert John Purchase's medical license number?
Dr. Purchase holds California license A97653, one of the licenses on file in 2 states.
Which states has Dr. Robert John Purchase been licensed in?
Dmand AI has state licenses on file for Dr. Purchase in California (2006 to 2026) and Pennsylvania (2002 to 2008).
Which hospitals is Dr. Robert John Purchase affiliated with?
Dr. Purchase is affiliated with UCSF Health Hyde Hospital. Dmand AI links Dr. Purchase to 2 more hospitals.
Does Dr. Robert John Purchase accept Medicare?
Yes. CMS data shows Dr. Purchase billed Medicare for 352 services in 2024, and Dr. Purchase accepts Medicare assignment.
How many Medicare patients does Dr. Robert John Purchase see?
CMS counts 109 Medicare patients who saw Dr. Purchase in 2024, with an average age of 76.
Is Dr. Robert John Purchase board certified?
Yes. Dr. Purchase is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
Show 8 more questionsShow fewer questions
What services does Dr. Robert John Purchase bill to Medicare?
In 2024, Dr. Purchase's most billed Medicare services were office visit, established patient (99213), surgery: bones and joints (20610) and office visit, new patient (99203).
Where did Dr. Robert John Purchase go to medical school?
Dr. Purchase graduated from Lewis Katz School of Medicine in 2002.
What drugs does Dr. Robert John Purchase prescribe most?
In 2019 Medicare Part D data, Dr. Purchase's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Naproxen.
Has Dr. Robert John Purchase received payments from drug or device companies?
CMS Open Payments shows $11,245 in general payments to Dr. Purchase from 18 companies from 2016 to 2025. The largest total came from Evolution Surgical, Inc.
How long has Dr. Robert John Purchase been practicing?
Dr. Purchase graduated from medical school in 2002, 24 years ago.
Does Dr. Robert John Purchase do research?
Dmand AI links 4 publications to Dr. Purchase.
Who does Dr. Robert John Purchase publish with?
Dr. Purchase's most frequent co-authors are Kenneth McRae Rogers, MD (1 shared paper) and Allen Y. Tham, MD (1 shared paper).
What insurance does Dr. Robert John Purchase accept?
Dr. Purchase is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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