DR. EDUARDO DIEGO ABARCA ROJAS M.D.
NPI 1538447628
Internal Medicine in Parkville, MD

Active since July 24, 2011PECOS EnrolledAccepts Medicare Assignment
8813 WALTHAM WOODS RD, STE 204, PARKVILLE, MD 21234(410) 661-4670 Get Directions Write a Review

NPPES record last updated: August 31, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 31, 2022, May 6, 2022 (2 updates tracked since 2022).

About Dr. Eduardo Diego Abarca Rojas M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. EDUARDO DIEGO ABARCA ROJAS M.D. (NPI 1538447628) is an individual internal medicine provider in Parkville, Maryland, licensed in Maryland (D77964) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS, is affiliated with University Of Maryland Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1538447628
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. EDUARDO DIEGO ABARCA ROJASCredential: M.D.
Location Address8813 WALTHAM WOODS RD, STE 204Parkville, MD 21234-2450
Mailing Address8813 Waltham Woods Rd, Ste 204Parkville, MD 21234-2450 · (410) 661-4670
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateJuly 24, 2011
Last NPPES UpdateAugust 31, 20222 updates tracked since enumeration
NPPES CertifiedAugust 31, 2022
✔ NPI 1538447628 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MD · D77964✔ Licensed in AL · MD.39315✔ Licensed in FL · ME144129✔ Licensed in IL · 036.153848✔ Licensed in KY · C0286✔ Licensed in ME · MD36013✔ Licensed in MI · EMC0001910✔ Licensed in NH · 20374✔ Licensed in OK · 39549✔ Licensed in PA · MD470693✔ Licensed in TN · 61333✔ Licensed in VT · 042.0016084-COMP✔ Licensed in WI · 747-320✔ Licensed in WV · 30712
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License D77964 (MD)
8813 WALTHAM WOODS RD, Parkville, MD 21234

Secondary Practice Locations 2

Location 1500 Upper Chesapeake DrBel Air, MD 21014-4324 · Phone (443) 643-1500
Location 2501 S Union AveHavre DE Grace, MD 21078-3409 · Phone (443) 843-8050

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

Dr. Eduardo Diego Abarca Rojas M.d. 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.

PECOS PAC ID4587883863
PECOS Enrollment IDI20140918001318
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

10

Medicare enrollment records show Eduardo Abarca Rojas reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
8901 CLEMENT AVE
Baltimore, MD 21234
  • Reassigned Medicare billing, Maryland enrollment
  • Medicare enrollment name: Maryland Medical First PA
  • 77 clinicians in this Medicare group
General Practice
5601 LOCH RAVEN BLVD, RUSSELL MORGAN BLDG 3RD FL
Baltimore, MD 21239
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • 3,530 clinicians in this Medicare group
Physical Medicine & Rehabilitation
4924 CAMPBELL BLVD STE 130A
Nottingham, MD 21236
  • Reassigned Medicare billing, Maryland enrollment
  • 952 clinicians in this Medicare group
Hospitalist
500 UPPER CHESAPEAKE DR
Bel Air, MD 21014
  • Reassigned Medicare billing, Maryland enrollment
  • 84 clinicians in this Medicare group
Hospitalist
500 UPPER CHESAPEAKE DR
Bel Air, MD 21014
  • Reassigned Medicare billing, Maryland enrollment
  • 158 clinicians in this Medicare group
Hospitalist
660 MCHENRY RD
Aberdeen, MD 21001
  • Reassigned Medicare billing, Maryland enrollment
  • 97 clinicians in this Medicare group
Internal Medicine
5999 HARPERS FARM RD STE W230
Columbia, MD 21044
  • Reassigned Medicare billing, Maryland enrollment
  • 31 clinicians in this Medicare group
Hospitalist
501 S UNION AVE
Havre De Grace, MD 21078
  • Reassigned Medicare billing, Maryland enrollment
  • 102 clinicians in this Medicare group
Surgery
110 IRVING ST NW, ATTN: MEDICAL AFFAIRS
Washington, DC 20010
  • Reassigned Medicare billing, District of Columbia enrollment
  • 277 clinicians in this Medicare group
Emergency Medical Services
110 IRVING ST NW
Washington, DC 20010
  • Reassigned Medicare billing, District of Columbia enrollment
  • Medicare enrollment name: Whc Physician Group LLC
  • 613 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 6

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
261 services257 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
184 services183 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
152 services150 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
72 services72 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307
A follow-up nursing facility visit per day typically lasts about 10 minutes. This service involves a healthcare professional checking on your health status, answering any questions you may have, and monitoring your progress. This routine check ensures your recovery is on track and any concerns are addressed promptly.
54 services53 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
34 services33 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Maryland Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210002
Location22 South Greene StreetBaltimore, MD 21201 · Baltimore City County
Emergency services Birthing friendly

Medstar Franklin Square Medical Center

Acute Care Hospitals · Rosedale, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210015
Location9000 Franklin Square DriveRosedale, MD 21237 · Baltimore County
Emergency services Birthing friendly

Umd Upper Chesapeake Medical Center

Acute Care Hospitals · Bel Air, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number210049
Location500 Upper Chesapeake DriveBel Air, MD 21014 · Harford County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21234 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Clinic/Center (Physical Therapy)
8813 WALTHAM WOODS RD, SUITE 103
BALTIMORE, MD 21234
Obstetrics & Gynecology
8813 WALTHAM WOODS RD, STE 101
PARKVILLE, MD 21234
Internal Medicine
8813 WALTHAM WOODS RD, SUITE 204
PARKVILLE, MD 21234
Counselor (Mental Health)
8813 WALTHAM WOODS RD, SUITE310
BALTIMORE, MD 21234
Acupuncturist
8813 WALTHAM WOODS RD, SUITE 201
PARKVILLE, MD 21234
Prosthetist
8813 WALTHAM WOODS RD
PARKVILLE, MD 21234
Pediatrics
8813 WALTHAM WOODS RD, SUITE 102
PARKVILLE, MD 21234
Counselor (Mental Health)
8813 WALTHAM WOODS RD, 302
BALTIMORE, MD 21234

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 Eduardo Abarca Rojas's NPI number?

The NPI number for Eduardo Abarca Rojas is 1538447628. It was assigned to this individual provider in the NPPES registry on July 24, 2011.

Where is Eduardo Abarca Rojas located?

Eduardo Abarca Rojas practices at 8813 Waltham Woods Rd Ste 204, Parkville, MD 21234. The listed phone number is (410) 661-4670.

What is Eduardo Abarca Rojas's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Eduardo Abarca Rojas enrolled in Medicare?

Yes. Eduardo Abarca Rojas 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 Eduardo Abarca Rojas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eduardo Abarca Rojas reassigns Medicare benefits to 10 organizations: Maryland Medical First P.A. (Baltimore, MD), Medstar Medical Group II LLC (Baltimore, MD), Johns Hopkins Community Physicians, Inc (Nottingham, MD), Adfinitas Health At Upper Chesapeake, LLC (Bel Air, MD), Upper Chesapeake Medical Services, Inc (Bel Air, MD) and 5 more organizations, listed in the Medicare section above. 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 Eduardo Abarca Rojas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Eduardo Abarca Rojas affiliated with any hospitals?

According to CMS data, Eduardo Abarca Rojas is affiliated with University Of Maryland Medical Center, Medstar Franklin Square Medical Center and Umd Upper Chesapeake Medical Center.

When was this NPI record last updated?

The NPPES record for Eduardo Abarca Rojas was last updated on August 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.