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- 150 Laguna Rd Ste A, Fullerton, CA 92835
About Tammy Chen
Tammy Chen, NURSE PRACTITIONER is a nurse practitioner — adult health based in Fullerton, CA. Medicare claims data shows Tammy provided 141 services to 71 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and telephone medical discussion with physician, 11-20 minutes. The provider's National Provider Identifier (NPI) is 1255792875.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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) 525-8822
- Email not available
Practice Locations
150 LAGUNA RD STE A
Fullerton, CA 92835
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Adult Health 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
Allergy & skin
Blood disorders
Bone health
Brain & nerves
Digestive
- Acute diarrhea
- Hemorrhoids
- Viral gastroenteritis
Digestive health
Eye issues
Foot & ankle
General health
Heart
Heart & circulation
Hormones & endocrine
Infections
Joints & bones
Men's health
Mental health
Pain
Pain & musculoskeletal
Respiratory
Sexual health
Skin
Skin & hair
Skin & nails
Skin issues
Sleep
Urinary
Weight management
Women's health
Procedures & services
Most searched procedures
- Annual physical exam
- Routine blood work
- Sick visit
- Sports physical
- Suture removal
- Vaccination
Acute care
- Tick bite evaluation and treatment
Allergy & immunology
- Allergy testing
Care coordination
- Specialist referral consult
Clinical exams
- Pre-surgery clearance
Diabetes care
Diagnostics
- In-office urine test
- Rapid flu test
Digestive
Ear care
Endocrine
- Thyroid checkup
Heart & circulation
Heart health
- Blood Pressure Check
- Cholesterol and Lipid Blood Panel
- Heart monitor
Injections
Medication management
- Prescription Refill Visit
Men's health
- Prostate exam
- Testosterone replacement therapy consult
Mental health
- Depression screening
Minor procedures
- Incision and drainage of an abscess
- Ingrown toenail removal
- Skin biopsy
- Skin Tag Removal
- Superficial foreign-body removal
- Wart Removal
- Wound care and dressing
Occupational health
- DOT Physical
Pain & wellness
Pain management
Preventive care
- Colon cancer screening consult
- Medicare wellness visit
- Smoking cessation counseling
- Travel health clinic and vaccines
Respiratory care
Screenings & tests
- Rapid COVID-19 test
- Rapid strep testing
- TB Skin Test
- Urine drug screening
Senior care
- Cognitive and memory screening
- Fall risk assessment
Sexual health
- PrEP consultation
- STI and STD Screening
Skin care
- Cryotherapy for skin spots
- Mole Check
Sleep
Telehealth
- Virtual doctor visit
Urgent care
- Minor laceration repair
- Splinting of minor injuries
Weight management
- Weight loss medication consult
Women's health
- Birth control counseling
- Hormone replacement therapy consult
- Pap smear
Procedures Most Often Billed to Medicare
141 services · 71 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
57 | As often as other peers in Nurse Practitioner, Adult |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
48 | As often as other peers in Nurse Practitioner, Adult |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
36 | More often than most peers in Nurse Practitioner, Adult |
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 2
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 nurse practitioners in Fullerton 6
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Tammy Chen's specialty?
Tammy Chen is a nurse practitioner in Fullerton, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Adult Health”.
NPI registry
Where can I find Tammy Chen?
Tammy Chen is listed at 150 Laguna Rd Ste A, Fullerton, CA 92835. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Tammy Chen?
The number on file is (714) 525-8822. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Tammy Chen?
Tammy Chen's National Provider Identifier is 1255792875. 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 Tammy Chen's education?
Tammy Chen attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Tammy Chen have?
Tammy Chen has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What is Tammy Chen known for?
According to Medicare billing data, Tammy Chen the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Tammy Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Tammy Chen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.