Mark Guerdan, D.O.
NPI 1326089574 · Anesthesiology Physician · Riverdale, GA
Mark Guerdan, D.O. is a Anesthesiology Physician provider in Riverdale, GA (NPI 1326089574).
Provider details
- NPI number
- 1326089574
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 31403 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Nursing Service Providers
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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Alprazolam | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-09
- Last updated
- 2014-07-14
Frequently asked questions
- What is Mark Guerdan's NPI number?
- Mark Guerdan's National Provider Identifier (NPI) is 1326089574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Guerdan's specialty?
- Mark Guerdan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Guerdan located?
- Mark Guerdan's practice location on file with NPPES is 6525 Professional Pl, Riverdale, GA 30274-2519.
- What is Mark Guerdan's phone number?
- The practice phone number listed in the NPPES registry for Mark Guerdan is (404) 254-5496.
- Is Mark Guerdan's NPI active?
- Yes — Mark Guerdan's NPI (1326089574) is active in the NPPES registry as of the last update on 2014-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.