Gregory Haveman, MD
NPI 1447415773 · Otolaryngology Physician · Walla Walla, WA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Haveman, MD is a Otolaryngology Physician provider in Walla Walla, WA (NPI 1447415773).
Provider details
- NPI number
- 1447415773
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD60388989 (WA)
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
17 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
3,021 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 731 | $90 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 653 | $186 |
| Removal of Impacted Ear Wax69210 | 550 | $43 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 453 | $127 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 222 | $162 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 466 | 160 |
| Fluticasone Propionate | 290 | 127 |
| Omeprazole | 116 | 46 |
| Prednisone | 104 | 75 |
| Azelastine Hcl | 90 | 39 |
| Dexamethasone Sodium Phosphate | 77 | 53 |
| Ofloxacin | 69 | 51 |
| Mupirocin | 62 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-25
- Last updated
- 2013-08-13
Frequently asked questions
- What is Gregory Haveman's NPI number?
- Gregory Haveman's National Provider Identifier (NPI) is 1447415773, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Haveman's specialty?
- Gregory Haveman is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Haveman located?
- Gregory Haveman's practice location on file with NPPES is 320 W Willow St, Walla Walla, WA 99362-2922.
- What is Gregory Haveman's phone number?
- The practice phone number listed in the NPPES registry for Gregory Haveman is (509) 525-3720.
- Does Gregory Haveman accept Medicare?
- Gregory Haveman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Haveman's NPI active?
- Yes — Gregory Haveman's NPI (1447415773) is active in the NPPES registry as of the last update on 2013-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.