Tammy Huizenga, D.O.
NPI 1003816224 · Family Medicine Physician · Grand Rapids, MI
Tammy Huizenga, D.O. is a Family Medicine Physician provider in Grand Rapids, MI (NPI 1003816224).
Provider details
- NPI number
- 1003816224
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- TB009726 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,966 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $117 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 190 | $83 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 164 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 149 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 116 | $10 |
| Thyroid Hormone, T3 Measurement, Free84481 | 111 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Thyroid,porkbrand: Armour Thyroid | 281 | 75 |
| Levothyroxine Sodium | 172 | 55 |
| Thyroid,porkbrand: NP Thyroid | 119 | 33 |
| Amlodipine Besylate | 69 | 21 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 50 | 40 |
| Fluconazole | 46 | 37 |
| Amoxicillin/Potassium Clav |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2020-09-21
- Certified
- 2020-09-21
Frequently asked questions
- What is Tammy Huizenga's NPI number?
- Tammy Huizenga's National Provider Identifier (NPI) is 1003816224, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Huizenga's specialty?
- Tammy Huizenga is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tammy Huizenga located?
- Tammy Huizenga's practice location on file with NPPES is 3700 52nd St Se, Grand Rapids, MI 49512-9637.
- What is Tammy Huizenga's phone number?
- The practice phone number listed in the NPPES registry for Tammy Huizenga is (616) 656-3700.
- Is Tammy Huizenga's NPI active?
- Yes — Tammy Huizenga's NPI (1003816224) is active in the NPPES registry as of the last update on 2020-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.