Provider Profile
Michael S. Santillan, PA-C, CAQ-PSYCH
Unclaimed ProfileAbout Michael Santillan
Michael S. Santillan, PA-C, CAQ-PSYCH is a physician assistant — medical based in Mission Viejo, CA. According to Medicare claims data, Michael cared for 87 Medicare patients across 285 services. 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, psychotherapy with evaluation and management visit, 30 minutes, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
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
- (714) 545-5550
- Email not available
Practice Locations
26024 ACERO
Mission Viejo, CA 92691
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical 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
- Common cold
- Diabetes
- Flu
- High blood pressure
- Sinus infection
- UTI
Allergies
- Hives
- Seasonal allergies
Blood
- Iron-deficiency anemia
Bone and joint
- Osteoporosis
- Tendinitis and tendinopathy
Digestive
- Acid reflux
- IBS
- Stomach Bug and Food Poisoning
Digestive health
- Constipation
- Fatty liver disease
- Hemorrhoids
Ear, Nose & Throat
- Ear infection
Endocrine
- Hypothyroidism
Eye Care
- Pink eye
Foot and ankle
- Foot fungus
- Heel pain
General Health
- Chronic fatigue
Hair and scalp
- Hair loss
Headache and brain
- Tension headaches
Heart & Circulation
- High cholesterol
Hormones
- Perimenopause
- Testosterone deficiency
Infections
- Cellulitis
- COVID-19
- Herpes simplex of the skin
- Ringworm
- Strep throat
Injury
- Sprains and muscle strains
Men's Health
- Erectile dysfunction
Mental Health
- Anxiety
- Depression
Metabolic
- Obesity
Nerve conditions
- Carpal tunnel
- Sciatica
Neurology
- Dizziness and vertigo
- Migraines
Pain
- Gout
- Low back pain
- Osteoarthritis
- Whiplash
Respiratory
- Acute bronchitis
- Asthma
- Community-acquired pneumonia
Sexual Health
- Sexually transmitted infections
Skin
- Acne
- Eczema
- Psoriasis
- Shingles
Skin cancer
- Precancerous sun spot
Skin conditions
- Rosacea
Sleep
- Insomnia and Sleep Problems
Women's Health
- Yeast infection
Procedures & services
Most searched procedures
- Annual physical exam
- Routine blood work
- Sick visit
- Sports physical
- Suture removal
- Vaccination
Allergies
- Allergy Testing and Shots
Counseling
- Smoking cessation counseling
Dermatology
- Cryotherapy for skin lesions
- Skin biopsy
- Skin Tag Removal
Diagnostic Tests
- COVID-19 Rapid Test
- Mono Rapid Test
- Rapid Flu Swab
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
- Urine Pregnancy Test
Ear, Nose & Throat
- Earwax removal
- Removal of Foreign Object from Ear or Nose
Evaluations
- Pre-Op Clearance Exam
Exams
- DOT Physical Exam
- Medicare annual wellness visit
- Pre-Employment Physical
- School and camp physical
General Care
- Prescription Refill Visit
- Wound Care and Dressing Change
Heart & Circulation
- EKG
Heart health
- Heart monitor
Hormones
- Hormone replacement therapy consult
Injections
- Bursa injection
- Joint injection or aspiration
- Vitamin B12 Injections
Injury Care
- Burn Treatment
- Splinting and temporary casting
Lab tests
- Cholesterol screening
- Hemoglobin A1c Test
- Thyroid Blood Test
- Urinalysis
Mental Health
- Depression screening
Metabolic
- Weight Loss Medication Consultation
Minor surgery
- Cyst Removal
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
- Trigger-point injection
Prevention
- Travel health clinic and vaccines
Respiratory
- Asthma Action Plan Consultation
- Nebulizer Breathing Treatment
Screening
- Blood Pressure Check and Monitoring
- STI and STD Screening
Skin procedures
- Mole Check
- Mole removal
- Wart Removal
Treatments
- IV hydration for cancer patients
Virtual care
- Virtual doctor visit
Women's Health
- Birth control counseling
- Well-woman exam
Women's health
- Pap smear
Procedures Most Often Billed to Medicare
285 services · 87 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
81 | More often than most peers in Physician Assistant — Medical |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
139 | More often than most peers in Physician Assistant — Medical |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
65 | As often as other peers in Physician Assistant — Medical |
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.
Other physician assistants at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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.
More connections — 29 related providers in 4 groups
Other physician assistants in Mission Viejo 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Michael S. Santillan, PA-C's specialty?
Michael S. Santillan, PA-C is a physician assistant in Mission Viejo, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
Where can I find Michael S. Santillan, PA-C?
Michael S. Santillan, PA-C is listed at 26024 Acero, Mission Viejo, CA 92691. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Michael S. Santillan, PA-C?
The number on file is (714) 545-5550. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Michael S. Santillan, PA-C's NPI number?
Michael S. Santillan, PA-C's National Provider Identifier is 1861139628. 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 Michael S. Santillan, PA-C's education?
Michael S. Santillan, PA-C attended Other, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How long has Michael S. Santillan, PA-C been practicing?
Michael S. Santillan, PA-C has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What is Michael S. Santillan, PA-C known for?
According to Medicare billing data, Michael S. Santillan, PA-C provides treatments such as psychotherapy with evaluation and management visit, 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Michael S. Santillan, PA-C confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Michael S. Santillan, PA-C. 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.