Mark Koenig, M.D.
NPI 1588841969 · Emergency Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Koenig, M.D. is a Emergency Medicine Physician provider in San Diego, CA (NPI 1588841969).
Provider details
- NPI number
- 1588841969
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A96822 (CA)
Specialties & taxonomies
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
18 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
547 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 254 | $181 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 209 | $9 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 41 | $125 |
| Critical Care, First 30-74 Minutes99291 | 30 | $224 |
| Advance Care Planning, First 30 Minutes99497 | 13 | $81 |
Typical Medicare-allowed amounts for these services range $9–$224 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 46 | 45 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 45 | 43 |
| Ondansetron Hcl | 43 | 43 |
| Famotidine | 31 | 31 |
| Ondansetronbrand: Ondansetron Odt | 22 | 22 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 19 | 19 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-28
- Last updated
- 2010-03-26
Frequently asked questions
- What is Mark Koenig's NPI number?
- Mark Koenig's National Provider Identifier (NPI) is 1588841969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Koenig's specialty?
- Mark Koenig is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Koenig located?
- Mark Koenig's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9001.
- What is Mark Koenig's phone number?
- The practice phone number listed in the NPPES registry for Mark Koenig is (619) 543-3210.
- Does Mark Koenig accept Medicare?
- Mark Koenig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Koenig's NPI active?
- Yes — Mark Koenig's NPI (1588841969) is active in the NPPES registry as of the last update on 2010-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.