ROBERT B HARTMANN MD
NPI 1265416911
Obstetrics & Gynecology in Dover, DE
About Robert B Hartmann Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT B HARTMANN MD (NPI 1265416911) is an individual obstetrics & gynecology provider in Dover, Delaware, licensed in Delaware (C10005311) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Robert B Hartmann Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Robert Hartmann reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dover, DE 19904
- Reassigned Medicare billing, Delaware enrollment
- 37 clinicians in this Medicare group
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- 35 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19904 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOVER, DE 19904
DOVER, DE 19904
DOVER, DE 19904
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Robert Hartmann's NPI number?
The NPI number for Robert Hartmann is 1265416911. It was assigned to this individual provider in the NPPES registry on December 5, 2005.
Where is Robert Hartmann located?
Robert Hartmann practices at 200 Banning Street Suite 320, Dover, DE 19904. The listed phone number is (302) 674-0223.
What is Robert Hartmann's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Robert Hartmann enrolled in Medicare?
Yes. Robert Hartmann is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Robert Hartmann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Hartmann reassigns Medicare benefits to 2 organizations: Dedicated To Women Ob-Gyn, P.A. (Dover, DE) and Ob Hospitalist Services Delaware PA (Dover, DE). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Hartmann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Hartmann accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next list Robert Hartmann as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Robert Hartmann was last updated on June 18, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Robert B Hartmann, MD · NPI 1265416911
Obstetrics & Gynecology physician in Dover, Delaware. Individual provider, active in the CMS NPPES registry since December 5, 2005.
## Identity
- **NPI:** 1265416911 (Entity type: Individual)
- **Enumerated:** December 5, 2005
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** C10005311 (Delaware)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 200 BANNING STREET, SUITE 320, Dover, DE 19904-3530
- **Phone:** (302) 674-0223 · **Fax:** (302) 674-0109
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Dedicated To Women Ob-Gyn, P.A. (NPI 1548291891, Dover, DE); Ob Hospitalist Services Delaware PA (NPI 1619304300, Dover, DE) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers New Jersey Medical School, class of 1994
## Record status
- **NPPES last updated:** June 18, 2010
- **Other identifiers:** Medicare UPIN G69229; Medicaid 0000856201 (DE); Medicare ID-Type Unspecified HA001047 (DE)
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Source: [NPI Profile](https://npiprofile.com/npi/1265416911) · Data from the CMS NPPES public registry.