Dr. Nikolaj Wolfson, MD

  • San Francisco, CA
  • Orthopaedic trauma physician
NPI1144270612PAC ID2466346150
Medicare services, 2024
191
Medicare patients, 2024
109
Part D claims, 2024
15
Publications
7
Hospital affiliations
5
Practice address
900 Hyde St, San Francisco, CA 94109
Practice phone
Call (415) 353-6000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

UCSF Health Hyde Hospital

Hospital · San Francisco, California

See all 7 affiliations

Find Dr. Wolfson'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.

View contacts for free

Dr. Nikolaj Wolfson is an orthopaedic trauma physician in San Francisco, California

Dr. Wolfson practices at UCSF Health Hyde Hospital in San Francisco, California, part of University of California Health.

Dr. Wolfson's NPI, 1144270612, was assigned on May 12, 2006. Dr. Wolfson graduated from Tel Aviv University Sackler in 1984. Dr. Wolfson's California license number on file is C51436.

NPI and contact details
Medicare PAC ID
2466346150
NPI enumeration date
May 12, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(415) 353-6000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Nikolaj Wolfson practices at UCSF Health Hyde Hospital in San Francisco, California

Dr. Wolfson's primary practice is UCSF Health Hyde Hospital, at 900 Hyde St, San Francisco, CA 94109 in San Francisco County. The practice phone is (415) 353-6000.

Source: Dmand AI Affiliation Data

Dr. Nikolaj Wolfson is affiliated with 6 sites of care and 1 medical group

Dr. Wolfson's primary practice is UCSF Health Hyde Hospital in San Francisco, California, part of University of California Health. Dr. Wolfson is also affiliated with California Pacific Medical Center Van Ness Campus. The medical group on file is Chinese Hospital. Dmand AI also links Dr. Wolfson to 3 more hospitals and 1 physician office, each named with a free account.

See all 7 affiliations for Dr. Wolfson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Nikolaj Wolfson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wolfson practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Health Hyde HospitalAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Wolfson practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across University of California Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Nikolaj Wolfson is one of 116 orthopaedic trauma physicians in California

Orthopaedic trauma is Dr. Wolfson's primary specialty in the NPI Registry, under taxonomy code 207XX0801X. Dr. Wolfson is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Wolfson's licenses on file in 3 states: California, Ohio and West Virginia.

Specialties and state licenses

  • Orthopaedic trauma, CaliforniaPrimaryLicense C51436 · 2003 to 2025 · taxonomy 207XX0801X
  • Ohio license
  • Specialist, West VirginiaLicense 21346 · 2003 to 2025 · taxonomy 174400000X

Clinical focus

Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, bursitis, hip replacement, joint pain, knee arthroscopy, knee injury and knee replacement among the conditions Dr. Wolfson treats.

Orthopaedic trauma physicians near Dr. Wolfson

Counts of orthopaedic trauma physicians with a Dmand AI profile, by place and practice. Each opens the list.

116orthopaedic trauma physicians in California
6orthopaedic trauma physicians in San Francisco

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Nikolaj Wolfson billed Medicare for 191 services in 2024

CMS data shows 191 Medicare services from Dr. Wolfson across 5 procedure codes in 2024, for 109 Medicare patients. Medicare paid $17,670 for them.

Medicare services, 2024191
Medicare patients109
Paid by Medicare$17,670
Procedure codes5

Dr. Wolfson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2912024: 14849%
Surgery
2023: 1312024: 4367%
Drugs given in the office
2023: 3,5292024: 0100%

Where Dr. Wolfson's Medicare services took place, 2024

  • In an office17592%
  • In a facility168%

Dr. Wolfson compared with the California median for orthopaedic trauma physicians, 2024

  • Dr. Wolfson
  • California median
Medicare services
191vs 16416% above
Medicare patients
109vs 12714% below
Part D claims
14vs 2850% below

Medians across 107 orthopaedic trauma physicians in California with Dmand AI profiles that report each measure.

Dr. Wolfson'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.

See all procedures by Dr. Wolfson

Need commercial claims for Dr. Wolfson?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wolfson and other orthopaedic trauma physicians in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Nikolaj Wolfson treated 109 Medicare patients in 2024, average age 79

CMS counts 109 Medicare patients who saw Dr. Wolfson in 2024. The largest group is 75 to 84, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 69% are also on Medicaid. Their average risk score is 1.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Wolfson's median patient age at 69, with 54% women.

Medicare patients, 2024109
Average age79
Average risk score1.64
Also on Medicaid69%

Dr. Wolfson's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Wolfson's Medicare patients by sex, 2024

  • Women7771%
  • Men3229%

Chronic conditions among Dr. Wolfson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis72%
  4. Diabetes61%
  5. Mood disorders35%
  6. Depression32%
  7. Ischemic heart disease29%
  8. Chronic kidney disease25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Wolfson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women54%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Nikolaj Wolfson wrote 15 Medicare Part D claims in 2024

In 2024, Dr. Wolfson wrote 15 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $109 in total drug cost. In 2019, CMS named 21 claims across 1 drug.

Part D claims, 202415
Drugs named by CMS1
Total drug cost$109

Dr. Wolfson'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, 2019 to 2021

  • 2019
  • 2021
Claims for drugs CMS names
2019: 212021: 1433%

Drugs named by CMS: 1 in 2021, 1 in 2019.

See all prescribing by Dr. Wolfson

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. Nikolaj Wolfson ranks in the 53rd percentile for hip replacement in Medicare

Dr. Wolfson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of hip replacement by Dr. Wolfson, more than 53% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Wolfson ranks in Medicare procedure volume

Hip replacement
53rd 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)

For MedTech and pharma teams

Find orthopaedic trauma physicians like Dr. Wolfson by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Nikolaj Wolfson has 7 publications on record

Dmand AI links 7 papers to Dr. Wolfson in 2020. The most frequent topics are Biomechanical Phenomena, Tibia and Tomography, X-Ray Computed. Dr. Wolfson's most frequent co-authors are Corey J. Chakarun, Brielle Weinstein and Eric S. Weinstein, MD.

Papers7

Topics Dr. Wolfson writes about most

  • Biomechanical Phenomena
  • Tibia
  • Tomography, X-Ray Computed

Dr. Wolfson's most frequent co-authors

Recent publications by Dr. Wolfson

See all 7 publications and co-authors

See who Dr. Wolfson researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wolfson works with, so you can find a warm path to the right orthopaedic trauma physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Nikolaj Wolfson received $6,457 in industry payments from 2016 to 2025

CMS Open Payments shows 49 general payments to Dr. Wolfson from 16 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 38% of the total. Conformis, Inc. paid the most, $1,919.

General payments to Dr. Wolfson by program year, 2016 to 2025

General payments to Dr. Wolfson by kind, 2016 to 2025

$6.5Kin total
  • Travel and lodging$2,44438%
  • Food and beverage$2,30636%
  • Education$1,70726%

Companies that paid Dr. Wolfson the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Wolfson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Nikolaj Wolfson has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Wolfson, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Wolfson

  1. 2012
    • CMS Stage 1 EHR
  2. 2011
    • ABOS
  3. Undated
    • ACS Fellow

Dr. Wolfson's committees and leadership roles

Disaster Orthopaedics SICOTChair
2011 to 2015

Source: Dmand AI Professional Profile Data

Dr. Nikolaj Wolfson graduated from Tel Aviv University Sackler

Dr. Wolfson graduated from Tel Aviv University Sackler in 1984. Dr. Wolfson is a member of AAOS and ACS.

  1. Medical schoolTel Aviv University Sackler
  2. Board certified in orthopaedic surgeryAmerican Board of Orthopaedic Surgery

Source: Dmand AI Professional Profile Data

Dr. Nikolaj Wolfson accepts plans from 14 insurance carriers

Dr. Wolfson is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • Regence Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Wolfson accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Nikolaj Wolfson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Nikolaj Wolfson

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. Nikolaj Wolfson's NPI number?

Dr. Nikolaj Wolfson's NPI number is 1144270612. It was assigned on May 12, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Nikolaj Wolfson?

Dr. Nikolaj Wolfson is an orthopaedic trauma physician in San Francisco, California. The primary specialty in the NPI Registry is Orthopaedic Trauma Physician (taxonomy code 207XX0801X).

Where does Dr. Nikolaj Wolfson practice?

Dr. Wolfson practices at 900 Hyde St, San Francisco, CA 94109. Dr. Wolfson's primary practice is UCSF Health Hyde Hospital in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Wolfson to 3 hospitals and 1 physician office.

What is Dr. Nikolaj Wolfson's office phone number?

The practice phone on file for Dr. Wolfson is (415) 353-6000.

What is Dr. Nikolaj Wolfson's medical license number?

Dr. Wolfson's California license number on file is C51436, one of the licenses on file in 3 states.

Which states has Dr. Nikolaj Wolfson been licensed in?

Dmand AI has state licenses on file for Dr. Wolfson in California (2003 to 2025), Ohio and West Virginia (2003 to 2025).

Which hospitals is Dr. Nikolaj Wolfson affiliated with?

Dr. Wolfson practices at UCSF Health Hyde Hospital in San Francisco, California. Dr. Wolfson is also affiliated with California Pacific Medical Center Van Ness Campus. Dmand AI links Dr. Wolfson to 3 more hospitals.

What medical group is Dr. Nikolaj Wolfson part of?

Dr. Wolfson is linked to Chinese Hospital.

Does Dr. Nikolaj Wolfson accept Medicare?

Yes. CMS data shows Dr. Wolfson billed Medicare for 191 services in 2024, and Dr. Wolfson accepts Medicare assignment.

How many Medicare patients does Dr. Nikolaj Wolfson see?

CMS counts 109 Medicare patients who saw Dr. Wolfson in 2024, with an average age of 79.

Show 9 more questionsShow fewer questions

Is Dr. Nikolaj Wolfson board certified?

Yes. Dr. Wolfson is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.

What services does Dr. Nikolaj Wolfson bill to Medicare?

In 2024, Dr. Wolfson's most billed Medicare services were office visit, established patient (99213), surgery: bones and joints (20610) and office visit, new patient (99204).

Where did Dr. Nikolaj Wolfson go to medical school?

Dr. Wolfson graduated from Tel Aviv University Sackler in 1984.

What drugs does Dr. Nikolaj Wolfson prescribe most?

In 2021 Medicare Part D data, Dr. Wolfson's most prescribed drugs by claims were Acetaminophen-Codeine.

Has Dr. Nikolaj Wolfson received payments from drug or device companies?

CMS Open Payments shows $6,457 in general payments to Dr. Wolfson from 16 companies from 2016 to 2025. The largest total came from Conformis, Inc.

How long has Dr. Nikolaj Wolfson been practicing?

Dr. Wolfson graduated from medical school in 1984, 42 years ago.

Does Dr. Nikolaj Wolfson do research?

Dmand AI links 7 publications to Dr. Wolfson.

Who does Dr. Nikolaj Wolfson publish with?

Dr. Wolfson's most frequent co-authors are Corey J. Chakarun (1 shared paper), Brielle Weinstein (1 shared paper) and Eric S. Weinstein, MD (1 shared paper).

What insurance does Dr. Nikolaj Wolfson accept?

Dr. Wolfson is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

Selling to orthopaedic trauma practices?

See orthopaedic trauma physicians in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)