Ann Allergy Asthma Immunol
AsthmaHypersensitivity, ImmediateIgG Deficiency
Dr. Stephen M. Nagy, MD
NPI1629156351PAC ID2668658253
- Part D claims, 2024
- 690
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $366
- Medical group
- 1
- Practice address
- 1190 Veterans Blvd, Redwood City, CA 94063
- Practice phone
- Call (650) 299-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Redwood City, California
Find Dr. Nagy'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. Stephen M. Nagy is an orthopedic surgeon in Redwood City, California
Dr. Nagy practices at Permanente Medical Group Inc in Redwood City, California.
Dr. Nagy's NPI, 1629156351, was assigned on November 1, 2006. Dr. Nagy graduated from David Geffen School of Medicine at UCLA in 1994. Dr. Nagy holds California license A55232.
NPI and contact details
- NPI
- 1629156351NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668658253
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 299-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen M. Nagy practices at Permanente Medical Group Inc in Redwood City, California
Dr. Nagy's primary practice is Permanente Medical Group Inc, at 1190 Veterans Blvd, Redwood City, CA 94063 in San Mateo County. The practice phone is (650) 299-2000.
- Permanente Medical Group Inc1190 Veterans Blvd, Redwood City, CA 94063 · San Mateo CountyPhone(650) 299-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen M. Nagy is affiliated with 2 sites of care and 1 medical group
Dr. Nagy's primary practice is Permanente Medical Group Inc in Redwood City, California. Dr. Nagy is also affiliated with Kaiser Permanente South Sacramento Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen M. Nagy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nagy practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen M. Nagy is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Nagy's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Nagy is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Nagy is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists arthritis and hip replacement among the conditions Dr. Nagy treats.
Orthopedic surgeons near Dr. Nagy
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. Stephen M. Nagy's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Nagy's median patient age at 67, with 63% women.
Dr. Nagy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women63%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Stephen M. Nagy wrote 690 Medicare Part D claims in 2024
In 2024, Dr. Nagy wrote 690 Medicare Part D claims for 257 patients. 94% of them were for generic drugs. CMS names the drug for 636 of them, across 11 drugs with 11 or more claims each, at $15,300 in total drug cost. In 2023, CMS named 592 claims across 12 drugs.
Part D claims, 2024690
Drugs named by CMS11
Total drug cost$15,300
Part D patients257
Dr. Nagy's Part D claims by kind of drug, 2024
- Generic651 claims94%
- Brand-name39 claims6%
Dr. Nagy's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nagy's Part D claims, 2024
- Opioids44%306 of 690 claims
- Antibiotics9%59 of 690 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5922024: 6367%
Drugs named by CMS: 11 in 2024, 12 in 2023.
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
How Dr. Stephen M. Nagy takes part in Medicare
Dr. Nagy accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Hip 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. Stephen M. Nagy has 3 publications on record
Dmand AI links 3 papers to Dr. Nagy. The most frequent topics are Asthma. Dr. Nagy's most frequent co-author is Daniel Stephen Tuft, MD.
Papers3
Topics Dr. Nagy writes about most
- Asthma
Dr. Nagy's most frequent co-authors
Recent publications by Dr. Nagy
J Allergy Clin Immunol
AsthmaFood AdditivesFood Hypersensitivity
See who Dr. Nagy researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nagy 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. Stephen M. Nagy received $366 in industry payments from 2017 to 2025
CMS Open Payments shows 10 general payments to Dr. Nagy from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 95% of the total. Zimmer Biomet Holdings, Inc. paid the most, $220.
General payments to Dr. Nagy by program year, 2017 to 2025
General payments to Dr. Nagy by kind, 2017 to 2025
$366in total
- Food and beverage$34795%
- Travel and lodging$195%
Companies that paid Dr. Nagy the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen M. Nagy has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Nagy, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Nagy
- 2011
- CMS Stage 1 2012
- Undated
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Stephen M. Nagy graduated from David Geffen School of Medicine at UCLA
Dr. Nagy graduated from David Geffen School of Medicine at UCLA in 1994.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Stephen M. Nagy accepts plans from 2 insurance carriers
Dr. Nagy is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Nagy accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stephen M. Nagy'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 DataDmand AI Org Hierarchy Data |
| 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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Stephen M. Nagy
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. Stephen M. Nagy's NPI number?
Dr. Stephen M. Nagy's NPI number is 1629156351. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen M. Nagy?
Dr. Stephen M. Nagy is an orthopedic surgeon in Redwood City, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Stephen M. Nagy practice?
Dr. Nagy practices at 1190 Veterans Blvd, Redwood City, CA 94063. Dr. Nagy's primary practice is Permanente Medical Group Inc in Redwood City, California.
What is Dr. Stephen M. Nagy's office phone number?
The practice phone on file for Dr. Nagy is (650) 299-2000.
What is Dr. Stephen M. Nagy's medical license number?
Dr. Nagy holds California license A55232.
Which hospitals is Dr. Stephen M. Nagy affiliated with?
Dr. Nagy is affiliated with Kaiser Permanente South Sacramento Medical Center.
What medical group is Dr. Stephen M. Nagy part of?
Dr. Nagy is linked to The Permanente Medical Group, Inc.
Does Dr. Stephen M. Nagy accept Medicare?
Yes. CMS lists Dr. Nagy as accepting Medicare assignment.
Is Dr. Stephen M. Nagy board certified?
Yes. Dr. Nagy is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
Where did Dr. Stephen M. Nagy go to medical school?
Dr. Nagy graduated from David Geffen School of Medicine at UCLA in 1994.
Show 6 more questionsShow fewer questions
What drugs does Dr. Stephen M. Nagy prescribe most?
In 2024 Medicare Part D data, Dr. Nagy's most prescribed drugs by claims were Oxycodone HCl, Ibuprofen and Tramadol HCl.
Has Dr. Stephen M. Nagy received payments from drug or device companies?
CMS Open Payments shows $366 in general payments to Dr. Nagy from 3 companies from 2017 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Stephen M. Nagy been practicing?
Dr. Nagy graduated from medical school in 1994, 32 years ago.
Does Dr. Stephen M. Nagy do research?
Dmand AI links 3 publications to Dr. Nagy.
Who does Dr. Stephen M. Nagy publish with?
Dr. Nagy's most frequent co-authors are Daniel Stephen Tuft, MD (1 shared paper).
What insurance does Dr. Stephen M. Nagy accept?
Dr. Nagy is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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