Mark Santillan, M.D.
NPI 1114137668 · Maternal & Fetal Medicine Physician · Iowa City, IA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Santillan, M.D. is a Maternal & Fetal Medicine Physician provider in Iowa City, IA (NPI 1114137668).
Provider details
- NPI number
- 1114137668
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD-36593 (IA)
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (4)
- 105 E 9th StCoralville, IA 52241-2209Phone: (319) 467-2000Fax: (319) 467-2510
- 3385 Dexter Ct Ste 110Davenport, IA 52807-3475Phone: (563) 355-2244Fax: (319) 356-3949
- 500 E Market StIowa City, IA 52245-2633Phone: (319) 339-3551Fax: (319) 248-7945
- 1360 N Dodge StIowa City, IA 52245-6114Phone: (319) 356-2294Fax: (319) 384-9693
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2025-12-16
- Certified
- 2025-12-16
Frequently asked questions
- What is Mark Santillan's NPI number?
- Mark Santillan's National Provider Identifier (NPI) is 1114137668, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Santillan's specialty?
- Mark Santillan is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Santillan located?
- Mark Santillan's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Mark Santillan's phone number?
- The practice phone number listed in the NPPES registry for Mark Santillan is (319) 356-1616.
- Does Mark Santillan accept Medicare?
- Mark Santillan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Santillan's NPI active?
- Yes — Mark Santillan's NPI (1114137668) is active in the NPPES registry as of the last update on 2025-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.