Stephen Lambert, MD
NPI 1851395479 · Family Medicine Physician · Hattiesburg, MS
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Lambert, MD is a Family Medicine Physician provider in Hattiesburg, MS (NPI 1851395479).
Provider details
- NPI number
- 1851395479
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9145 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,553 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 684 | $82 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 653 | $9 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 488 | $57 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 431 | $115 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 362 | $16 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 159 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 427 | 123 |
| Atorvastatin Calcium | 419 | 106 |
| Losartan Potassium | 299 | 89 |
| Rosuvastatin Calcium | 291 | 85 |
| Gabapentin | 277 | 76 |
| Levothyroxine Sodium | 271 | 77 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,085 across 54 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-10
- Last updated
- 2007-11-16
Frequently asked questions
- What is Stephen Lambert's NPI number?
- Stephen Lambert's National Provider Identifier (NPI) is 1851395479, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Lambert's specialty?
- Stephen Lambert is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Lambert located?
- Stephen Lambert's practice location on file with NPPES is 110 Millsaps Dr, Hattiesburg, MS 39402-1347.
- What is Stephen Lambert's phone number?
- The practice phone number listed in the NPPES registry for Stephen Lambert is (601) 261-5710.
- Does Stephen Lambert accept Medicare?
- Stephen Lambert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Lambert's NPI active?
- Yes — Stephen Lambert's NPI (1851395479) is active in the NPPES registry as of the last update on 2007-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.