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Edit this profileWhere to find Phenu V. Zachariah, DO
- Tomball location main office
425 Holderrieth Blvd Ste 207, Tomball, TX 77375 - Racine location
1151 Warwick Way, Racine, WI 53406
About Dr. Zachariah
Phenu V. Zachariah, DO is a healthcare provider in Tomball, TX specializing in endocrinology, diabetes & metabolism. Phenu trained at Midwestern University, Chicago College of Osteopathic Med, graduating in 2004. According to Medicare claims data, Phenu cared for 255 Medicare patients across 570 services. The services billed most often include prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and diabetes outpatient self-management training services, individual, per 30 minutes. This provider record is associated with NPI 1386838340.
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
- (713) 347-8843
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
425 HOLDERRIETH BLVD STE 207
Tomball, TX 77375
1151 Warwick Way
Racine, WI 53406
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
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
- Fatty liver disease
- Insulin Resistance
- Unexplained Weight Gain
Parathyroid
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
570 services · 255 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | Treatment | 95251 |
28 | Less often than most peers in Endocrinology, Diabetes &… |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
177 | More than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
161 | More often than most peers in Endocrinology, Diabetes &… |
| Diabetes outpatient self-management training services, individual, per 30 minutes | Billing code | G0108 |
93 | 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 |
58 | Less often than most peers in Endocrinology, Diabetes &… |
| 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 |
27 | As often as other 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 |
26 | 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.
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.
Trained at Midwestern University, Chicago College of Osteopathic Med 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2004 at Midwestern University, Chicago College of Osteopathic Med 8
Providers who graduated from the same medical school in the same year.
Also performs Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 8
Providers in TX who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Zachariah?
Dr. Zachariah is an endocrinologist in Tomball, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Endocrinology, Diabetes & Metabolism”.
NPI registry
What is Dr. Zachariah's address?
Dr. Zachariah is listed at 425 Holderrieth Blvd Ste 207, Tomball, TX 77375. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Zachariah?
The number on file is (713) 347-8843. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Zachariah's NPI number?
Dr. Zachariah's National Provider Identifier is 1386838340. 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. Zachariah train?
Dr. Zachariah attended Midwestern University, Chicago College of Osteopathic Med, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Zachariah been practicing?
Dr. Zachariah has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Zachariah perform?
According to Medicare billing data, Dr. Zachariah provides treatments such as 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 Dr. Zachariah confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Zachariah. If this is you, claiming it is free.
Guide.md
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