Tammi Howard, MD
NPI 1114189560 · Internal Medicine Physician · Largo, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammi Howard, MD is a Internal Medicine Physician provider in Largo, MD (NPI 1114189560).
Provider details
- NPI number
- 1114189560
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD045398 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
127 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 | 55 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $98 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 29 | $8 |
Typical Medicare-allowed amounts for these services range $8–$141 (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.
Practice location
Mailing address
Additional practice locations (1)
- 200 1st St SwRochester, MN 55905-0001Phone: (507) 284-2511
Registry dates
- Enumerated
- 2008-06-26
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is Tammi Howard's NPI number?
- Tammi Howard's National Provider Identifier (NPI) is 1114189560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammi Howard's specialty?
- Tammi Howard is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tammi Howard located?
- Tammi Howard's practice location on file with NPPES is 1221 Mercantile Ln, Largo, MD 20774-5374.
- What is Tammi Howard's phone number?
- The practice phone number listed in the NPPES registry for Tammi Howard is (301) 618-5500.
- Does Tammi Howard accept Medicare?
- Tammi Howard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammi Howard's NPI active?
- Yes — Tammi Howard's NPI (1114189560) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.