Calvin Grubbs, MD, FAAFP
NPI 1487997169 · Family Medicine Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Grubbs, MD, FAAFP is a Family Medicine Physician provider in Tacoma, WA (NPI 1487997169).
Provider details
- NPI number
- 1487997169
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, FAAFP
- Sex
- Male
- Sole proprietor
- No
- License
- MD37496 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 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
50 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 | 35 | $138 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 15 | $193 |
Typical Medicare-allowed amounts for these services range $138–$193 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 97 | 36 |
| Gabapentin | 64 | 21 |
| Lisinopril | 61 | 18 |
| Losartan Potassium | 52 | 18 |
| Levothyroxine Sodium | 51 | 16 |
| Amlodipine Besylate | 50 | 21 |
| Cyclobenzaprine Hcl | 47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-01
- Last updated
- 2021-10-06
- Certified
- 2021-10-06
Frequently asked questions
- What is Calvin Grubbs's NPI number?
- Calvin Grubbs's National Provider Identifier (NPI) is 1487997169, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Grubbs's specialty?
- Calvin Grubbs is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Grubbs located?
- Calvin Grubbs's practice location on file with NPPES is 9040a Jackson Ave, Tacoma, WA 98431-9098.
- What is Calvin Grubbs's phone number?
- The practice phone number listed in the NPPES registry for Calvin Grubbs is (253) 968-1110.
- Does Calvin Grubbs accept Medicare?
- Calvin Grubbs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Grubbs's NPI active?
- Yes — Calvin Grubbs's NPI (1487997169) is active in the NPPES registry as of the last update on 2021-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.