Mark Darrow, M.D.
NPI 1881697506 · Geriatric Medicine (Internal Medicine) Physician · Lawrenceville, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Darrow, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in Lawrenceville, GA (NPI 1881697506).
Provider details
- NPI number
- 1881697506
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 068718 (GA)
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
21 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
30 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 | 30 | $90 |
Typical Medicare-allowed amounts for these services range $90–$90 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 24 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 21 |
| Amlodipine Besylate | 20 |
| Tramadol Hcl | 20 |
| Levothyroxine Sodium | 17 |
| Rosuvastatin Calcium | 17 |
| Zolpidem Tartrate | 14 |
| Gabapentin | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-27
- Last updated
- 2019-09-09
Frequently asked questions
- What is Mark Darrow's NPI number?
- Mark Darrow's National Provider Identifier (NPI) is 1881697506, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Darrow's specialty?
- Mark Darrow is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Darrow located?
- Mark Darrow's practice location on file with NPPES is 1000 Medical Center Blvd, Lawrenceville, GA 30046-7694.
- What is Mark Darrow's phone number?
- The practice phone number listed in the NPPES registry for Mark Darrow is (678) 312-3273.
- Does Mark Darrow accept Medicare?
- Mark Darrow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Darrow's NPI active?
- Yes — Mark Darrow's NPI (1881697506) is active in the NPPES registry as of the last update on 2019-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.