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Edit this profileWhere to find Margaret Y. Lee, M.D.
- Campbell location main office
50 E Hamilton Ave Ste 280, Campbell, CA 95008 - Los Gatos location
14251 Winchester Blvd, Ste 200, Los Gatos, CA 95032
About Dr. Lee
Margaret Y. Lee, M.D. is a healthcare provider in Campbell, CA specializing in endocrinology, diabetes & metabolism. According to Medicare claims data, Margaret cared for 684 Medicare patients across 20,536 services. The services billed most often include injection, romosozumab-aqqg, 1 mg, injection, denosumab, 1 mg, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1326079294.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (408) 227-2646
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
50 E HAMILTON AVE STE 280
Campbell, CA 95008
14251 WINCHESTER BLVD STE 200
Los Gatos, CA 95032
Conditions Commonly Evaluated or Treated
Within Endocrinology, Diabetes and Metabolism 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
Adrenal disorders
- Adrenal mass
- Cushing's Syndrome
- Adrenal Fatigue
- Adrenal gland tumor
Blood sugar disorders
Bone and calcium disorders
- Low Calcium
- High calcium
- Vitamin D deficiency
Bones
- Soft Bones
Pituitary
- Acromegaly
- Adult Growth Hormone Deficiency
- Underactive Pituitary Gland
Pituitary disorders
- Extreme Thirst and Urination
- High Prolactin
- Pituitary Tumor
- Short stature and growth concerns
Thyroid
- Thyroiditis
Thyroid disorders
- Graves' Disease
- Goiter
- Hashimoto's Disease
- Thyroid cancer
- Thyroid eye disease
- Thyroid nodules
Most searched conditions
Adrenal
- Low sodium or electrolyte imbalance
Diabetes
- Dangerous high blood sugar
- Diabetic retinopathy
- Kidney disease from diabetes
Endocrine tumors
Hormone disorders
- Early or delayed puberty
- Excess facial or body hair
- Gynecomastia
- Perimenopause
- Testosterone deficiency
Hormones
Metabolic disorders
Metabolism
Parathyroid
- Hyperparathyroidism
Procedures & services
Adrenal
- 24-Hour Urine Cortisol Test
- Aldosterone and Renin Blood Test
- Urine Metanephrines Test
Adrenal evaluations
- Adrenal Gland Suppression Test
- Cortisol Testing
Blood sugar management
- Continuous Glucose Monitor Placement
- Diabetes Screening and A1C Test
- Glucose screening test
Bone evaluations
- Parathyroid Hormone Test
- Bone Density Scan Referral
Bone treatments
- Bisphosphonate Infusion for Bones
- Bone Building Injections
Diabetes
- Automated Insulin System Setup
- Blood Ketone Monitoring
- C-Peptide Test
- Continuous Glucose Monitor Data Review
- Starting Insulin Therapy
- Medical nutrition therapy
Diabetes education
- Diabetes Self-Management Education
Genetic evaluations
- Genetic Testing for Endocrine Tumors
Hormone treatments
- Growth Hormone Injections
- Hormone Replacement Therapy Consultation
- Estrogen and Progesterone Therapy
Hormones
- Gender-affirming care consultation
Metabolic evaluations
Metabolism
- Fasting Insulin Test
Parathyroid
- Parathyroid Scan
Pituitary
- Growth Hormone Stimulation Test
Pituitary evaluations
- Prolactin Blood Test
- Water Deprivation Test
Routine Blood Tests
Thyroid
- Thyroid Uptake and Scan
- Thyroid Cyst Alcohol Ablation
Thyroid procedures
- Thyroid Antibody Testing
- Thyroid Medication Adjustment
- Radioactive Iodine Treatment
- Thyroid Blood Test
- Thyroid Nodule Biopsy
- Thyroid Nodule Radiofrequency Ablation
Weight & Metabolism
Women's health
Most searched procedures
- Hormone replacement therapy
- Insulin pump management
- Thyroid ultrasound
- Weight loss management
Diabetes preventive care
- Diabetic Foot Care
Procedures Most Often Billed to Medicare
20,536 services · 684 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fine needle aspiration biopsy using ultrasound guidance, first growth | Procedure | 10005 |
13 | Less often than most peers in Endocrinology, Diabetes &… |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
44 | As often as other peers in Endocrinology, Diabetes &… |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
208 | More than most peers in Endocrinology, Diabetes &… |
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | Treatment | 95251 |
61 | As often as other peers in Endocrinology, Diabetes &… |
| Injection, romosozumab-aqqg, 1 mg | Drug given | J3111 |
15,015 | As often as other peers in Endocrinology, Diabetes &… |
| Injection, denosumab, 1 mg | Drug given | J0897 |
4,620 | More often than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
408 | More often than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
66 | More often than most peers in Endocrinology, Diabetes &… |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
55 | More often than most peers in Endocrinology, Diabetes &… |
| 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 |
19 | Less often than most peers in Endocrinology, Diabetes &… |
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 endocrinologists at this location 4
Same specialty, same street address — most likely the same department or group.
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.
More connections — 8 related providers in 1 group
Also performs Fine needle aspiration biopsy using ultrasound guidance, first growth 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Margaret Y. Lee specialize in?
Margaret Y. Lee is an endocrinologist in Campbell, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Endocrinology, Diabetes & Metabolism”.
NPI registry
Where is Margaret Y. Lee located?
Margaret Y. Lee is listed at 50 E Hamilton Ave Ste 280, Campbell, CA 95008. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Margaret Y. Lee's phone number?
The number on file is (408) 227-2646. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Margaret Y. Lee's NPI number?
Margaret Y. Lee's National Provider Identifier is 1326079294. 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
How long has Margaret Y. Lee been practicing?
Margaret Y. Lee has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Margaret Y. Lee do most often?
According to Medicare billing data, Margaret Y. Lee performs procedures including fine needle aspiration biopsy using ultrasound guidance, first growth; reads or performs imaging such as ultrasound scan of head and neck soft tissue; provides treatments such as injection of drug or substance under skin or into muscle and continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Margaret Y. Lee confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Margaret Y. Lee. If this is you, claiming it is free.
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