Physician Profile
William Armstrong, MD
Unclaimed ProfileAbout Dr. Armstrong
William Armstrong, MD is a healthcare provider in Orange, CA specializing in otolaryngology (ent). William trained at University of Washington School of Medicine, graduating in 1988. Medicare claims data shows William provided 434 services to 348 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and diagnostic exam of voice box using a flexible endoscope.
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
Source: NPPES NPI Registry
Contact Information
- (714) 880-7812
- Email not available
Practice Locations
101 THE CITY DR S
Orange, CA 92868
Conditions Commonly Evaluated or Treated
Within Otolaryngology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Balance
Ear and hearing
- Cholesteatoma
- Eustachian tube dysfunction
- Hearing loss
- Otosclerosis
- Perforated eardrum
- Swimmer's ear
Head, neck, and salivary
- Hyperparathyroidism
- Neck mass
- Parotid gland tumor
- Salivary gland infection
- Thyroid cancer
Nose and sinus
- Broken nose
- Deviated septum
- Loss or reduction of smell
- Nasal obstruction
- Nasal polyps
- Nosebleeds
- Seasonal allergies
Sleep and airway
Throat and voice
- Enlarged adenoids
- Globus sensation
- Hoarseness and voice change
- Laryngopharyngeal reflux
- Swallowing difficulties
- Vocal cord nodules
- Vocal cord paralysis
Cancer
- Laryngeal cancer
- Oral cavity cancer
- Skin cancer of the head and neck
Head & Neck
Throat & Voice
- Frequent Strep Throat
Procedures & services
Most searched procedures
- Adenoidectomy
- Ear tube surgery
- Hearing test
- Sinus surgery
- Tonsillectomy
Office diagnosis
- Fine-needle aspiration of a neck mass
- Flexible laryngoscopy
- Nasal endoscopy
Cosmetic
Ear & Hearing
- Bone-Anchored Hearing Aid Surgery
- Eustachian Tube Balloon Dilation
Ear procedures
- Cochlear implant surgery
- Eardrum repair
- Earwax removal
- Mastoid surgery
- Stapes surgery
Head & Neck
- Neck Lump Removal
- Salivary Duct Stone Removal
- Thyroid Nodule Biopsy
Head and neck surgery
- Neck lymph-node dissection
- Parathyroid surgery
- Parotid gland surgery
- Thyroid removal surgery
- Voice-box removal
Nose & Sinus
- Broken Nose Repair
Nose and sinus procedures
- Nasal cautery for nosebleeds
- Nasal-polyp removal
- Rhinoplasty
- Septoplasty
- Turbinate reduction
Sleep and airway
- Drug-induced sleep endoscopy
- Hypoglossal nerve stimulator implantation
- Uvulopalatopharyngoplasty
Throat & Voice
Throat, voice, and swallowing
- Esophageal dilation
- Microlaryngoscopy
- Vocal-fold injection
Procedures Most Often Billed to Medicare
434 services · 348 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
40 |
| Fine needle aspiration biopsy using ultrasound guidance, first growth | Procedure | 10005 |
15 |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
20 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
208 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
65 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
33 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
33 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
20 |
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.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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 otolaryngology specialists in Orange 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Washington School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at University of Washington School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of voice box using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Armstrong's specialty?
Dr. Armstrong is an otolaryngology (ent) in Orange, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Armstrong?
Dr. Armstrong is listed at 101 the City Dr S, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Armstrong?
The number on file is (714) 880-7812. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Armstrong?
Dr. Armstrong's National Provider Identifier is 1063592145. 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
What is Dr. Armstrong's medical education?
Dr. Armstrong attended University of Washington School of Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Armstrong have?
Dr. Armstrong has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Armstrong known for?
According to Medicare billing data, Dr. Armstrong performs procedures including diagnostic exam of voice box using a flexible endoscope and fine needle aspiration biopsy using ultrasound guidance, first growth; reads or performs imaging such as ultrasound scan of head and neck soft tissue, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Armstrong's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Armstrong. 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.