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DOREEN CHEN MD
NPI 1760802011
Internal Medicine in Rockville, MD

Active since April 24, 2014PECOS EnrolledAccepts Medicare Assignment
9901 MEDICAL CENTER DR, ROCKVILLE, MD 20850(240) 826-7435 Get Directions Write a Review

NPPES record last updated: December 3, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 3, 2020, Jul 3, 2018 (2 updates tracked since 2018).

About Doreen Chen Md NPPES

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

DOREEN CHEN MD (NPI 1760802011) is an individual internal medicine provider in Rockville, Maryland, licensed in Maryland (D85407) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Adventist Healthcare Shady Grove Medical Center, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1760802011
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDOREEN CHENCredential: MD
Location Address9901 MEDICAL CENTER DRRockville, MD 20850-3357
Mailing Address9901 Medical Center DrRockville, MD 20850-3357 · (240) 826-7435
Phone(240) 826-7435
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateApril 24, 2014
Last NPPES UpdateDecember 3, 20202 updates tracked since enumeration
NPPES CertifiedDecember 3, 2020
✔ NPI 1760802011 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D85407
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.
9901 MEDICAL CENTER DR, Rockville, MD 20850
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Doreen Chen 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.

PECOS PAC ID1850649112
PECOS Enrollment IDI20180802000481
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.

Areas of Expertise CMS Part B claims 7

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.

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.
463 services191 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
104 services102 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
46 services31 patients
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.
40 services40 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
23 services20 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
21 services21 patients

Hospital Affiliations CMS Care Compare

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

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210057
Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20850 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

LOGAN HEWITT LMSW LGSM
Social Worker
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
DR. SHERRY CHANG PHARM.D.
Pharmacist (Pharmacotherapy)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (301) 294-0612
RAKESH MAKADIA M.D
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
MESFIN WOLDESENBET M.D.
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-7392
FABIAN PADRON PA-C
Physician Assistant (Surgical)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
SANDRA ST JEAN
Counselor (Professional)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
DR. ANUJA RASTOGI M.D.
Pediatrics
9901 MEDICAL CENTER DR, PEDIATRIC FLOOR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6480
NICOLE MARIE EDWARDS PA-C
Physician Assistant (Medical)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (586) 703-4476

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 Doreen Chen's NPI number?

The NPI number for Doreen Chen is 1760802011. It was assigned to this individual provider in the NPPES registry on April 24, 2014.

Where is Doreen Chen located?

Doreen Chen practices at 9901 Medical Center Dr, Rockville, MD 20850. The listed phone number is (240) 826-7435.

What is Doreen Chen's specialty?

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

Is Doreen Chen enrolled in Medicare?

Yes. Doreen Chen 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.

What insurance does Doreen Chen accept?

Health plans from Molina Healthcare list Doreen Chen 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.

Is Doreen Chen affiliated with any hospitals?

According to CMS data, Doreen Chen is affiliated with Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Doreen Chen was last updated on December 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.