Serhan Karvar, MD
NPI 1992209167 · Gastroenterology Physician · Iowa City, IA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Serhan Karvar, MD is a Gastroenterology Physician provider in Iowa City, IA (NPI 1992209167).
Provider details
- NPI number
- 1992209167
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- SP-0258 (IA)
Specialties & taxonomies
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
272 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 107 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $88 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 43 | $119 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $121 |
Typical Medicare-allowed amounts for these services range $88–$121 (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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 188 | 43 |
| Dicyclomine Hcl | 155 | 48 |
| Omeprazole | 135 | 44 |
| Ondansetronbrand: Ondansetron Odt | 97 | 41 |
| Pantoprazole Sodium | 95 | 30 |
| Linaclotidebrand: Linzess | 80 | 24 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 43 | — |
Practice location
Mailing address
Additional practice locations (3)
- 105 E 9th StCoralville, IA 52241-2209Phone: (319) 467-2000Fax: (319) 467-2504
- 540 E Jefferson St Ste 400Iowa City, IA 52245-2479Phone: (319) 337-5997Fax: (319) 358-2665
- 500 E Market StIowa City, IA 52245-2633Phone: (319) 339-3551Fax: (319) 248-7945
Registry dates
- Enumerated
- 2018-03-21
- Last updated
- 2025-11-20
- Certified
- 2025-11-20
Frequently asked questions
- What is Serhan Karvar's NPI number?
- Serhan Karvar's National Provider Identifier (NPI) is 1992209167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Serhan Karvar's specialty?
- Serhan Karvar is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Serhan Karvar located?
- Serhan Karvar's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Serhan Karvar's phone number?
- The practice phone number listed in the NPPES registry for Serhan Karvar is (319) 356-2132.
- Does Serhan Karvar accept Medicare?
- Serhan Karvar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Serhan Karvar's NPI active?
- Yes — Serhan Karvar's NPI (1992209167) is active in the NPPES registry as of the last update on 2025-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.