Physician Profile
Margaret SARAH HELEN Ferris, MD
Unclaimed ProfileAbout Dr. Ferris
Based in Stanford, CA, Margaret SARAH HELEN Ferris, MD is listed in the NPI registry under clinical neurophysiology. Margaret graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2016. Margaret is also listed as specializing in neurology. Medicare claims data shows Margaret provided 831 services to 522 patients. The services billed most often include visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
Procedures Most Often Billed to Medicare
831 services · 522 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of chemical for paralysis of nerve muscles on side of neck excluding voice box | Procedure | 64616 |
59 | Too few peers to compare |
| Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity | Procedure | 64642 |
27 | Too few peers to compare |
| Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | Treatment | 95874 |
79 | Too few peers to compare |
| Electronic analysis of implanted brain, spinal cord, or peripheral neurostimulator generator with brain stimulator programming, first 15 minutes with qualified health professional | Treatment | 95983 |
50 | Too few peers to compare |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
145 | More often than most peers in Clinical Neurophysiology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
142 | More than most peers in Clinical Neurophysiology |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
69 | More often than most peers in Clinical Neurophysiology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
58 | As often as other peers in Clinical Neurophysiology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
54 | More than most peers in Clinical Neurophysiology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
54 | More often than most peers in Clinical Neurophysiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other clinical neurophysiology specialists in Stanford 8
Same specialty, same city.
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 1
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2016 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of chemical for paralysis of nerve muscles on side of neck excluding voice box 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Ferris specialize in?
Dr. Ferris is a clinical neurophysiology in Stanford, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Ferris located?
Dr. Ferris is listed at 300 Pasteur Dr, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ferris's phone number?
The number on file is (650) 723-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ferris?
Dr. Ferris's National Provider Identifier is 1477917565. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Ferris go to medical school?
Dr. Ferris attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ferris have?
Dr. Ferris has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ferris do most often?
According to Medicare billing data, Dr. Ferris performs procedures including injection of chemical for paralysis of nerve muscles on side of neck excluding voice box and injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity; provides treatments such as needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle and electronic analysis of implanted brain, spinal cord, or peripheral neurostimulator generator with brain stimulator programming, first 15 minutes with qualified health professional, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Ferris's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ferris. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.