Tammie Arnold, DO
NPI 1669465878 · Hospitalist Physician · Arroyo Grande, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammie Arnold, DO is a Hospitalist Physician provider in Arroyo Grande, CA (NPI 1669465878).
Provider details
- NPI number
- 1669465878
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
- License
- 34006235 (OH)
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
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
3,362 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,243 | $75 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 797 | $108 |
| Advance Care Planning, First 30 Minutes99497 | 404 | $75 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 403 | $183 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 275 | $131 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 158 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,361 | 145 |
| Amlodipine Besylate | 1,132 | 93 |
| Levothyroxine Sodium | 1,072 | 111 |
| Lisinopril | 845 | 62 |
| Tamsulosin Hcl | 837 | 87 |
| Gabapentin | 793 | 93 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-24
- Last updated
- 2017-04-13
Frequently asked questions
- What is Tammie Arnold's NPI number?
- Tammie Arnold's National Provider Identifier (NPI) is 1669465878, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammie Arnold's specialty?
- Tammie Arnold is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Tammie Arnold located?
- Tammie Arnold's practice location on file with NPPES is 160 Station Way Unit 1633, Arroyo Grande, CA 93421-5083.
- What is Tammie Arnold's phone number?
- The practice phone number listed in the NPPES registry for Tammie Arnold is (805) 202-8513.
- Does Tammie Arnold accept Medicare?
- Tammie Arnold is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammie Arnold's NPI active?
- Yes — Tammie Arnold's NPI (1669465878) is active in the NPPES registry as of the last update on 2017-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.