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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MICHAEL JOEL POTTASH M.D.
NPI 1821359290
Internal Medicine - Hospice and Palliative Medicine in Washington, DC

Active since June 01, 2012PECOS Enrolled
80.17/100
CMS Quality Rating
110 IRVING ST NW, WASHINGTON, DC 20010(202) 877-7445 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Michael Joel Pottash M.d. NPPES

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

MICHAEL JOEL POTTASH M.D. (NPI 1821359290) is an individual hospice and palliative medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD044677) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital - St Louis, and maintains a secondary practice location in Lawrenceville.

NPPES Registry Identity

NPI1821359290
Entity TypeIndividualMale
Primary Taxonomy207RH0002X
Provider Legal NameMICHAEL JOEL POTTASHCredential: M.D.
Location Address110 IRVING ST NWWashington, DC 20010-3017
Mailing Address110 Irving St NwWashington, DC 20010-3017
Phone(202) 877-7445
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJune 1, 2012
Last NPPES UpdateOctober 19, 2026
NPPES CertifiedOctober 19, 2026
✔ NPI 1821359290 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
Licenses✔ Licensed in DC · MD044677✔ Licensed in GA · 102149
Definition
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
110 IRVING ST NW, Washington, DC 20010
Open in Google Maps ↗

Secondary Practice Location 1

Location 11000 Medical Center BlvdLawrenceville, GA 30046-7694 · Phone (678) 312-1000 · Fax (678) 312-3282

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Michael Joel Pottash 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 ID6507147337
PECOS Enrollment IDI20170110000489, I20250519000881, I20250522002740, I20250527002905, I20250602001190, I20260221000151
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

2

Medicare enrollment records show Michael Pottash reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Relief Medical Group PA
204 mi
Pain Medicine
169 MADISON AVE # 2412
New York, NY 10016
  • Reassigned Medicare billing, Alabama, District of Columbia, Georgia, North Carolina, New York and Tennessee enrollments
  • 2 clinicians in this Medicare group
NPI 1801541149 (850) 213-6396
Ssm Health Care St. Louis
717 mi
Emergency Medicine
6420 CLAYTON RD
Saint Louis, MO 63117
  • Reassigned Medicare billing, Missouri enrollment
  • 741 clinicians in this Medicare group
NPI 1366400855 (314) 768-8000

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.

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.
235 services115 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.
124 services124 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
43 services36 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.
30 services25 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
29 services12 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.
20 services18 patients

Hospital Affiliations CMS Care Compare

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

Ssm Health St Mary's Hospital - St Louis

Acute Care Hospitals · Richmond Heights, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260091
Location6420 Clayton RdRichmond Heights, MO 63117 · St. Louis County
Emergency services Birthing friendly

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.

80.17/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.69
Promoting Interoperability100
Improvement Activities40
Cost53.49

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.

MS. JANET E JUMPER N.P.
Nurse Practitioner (Acute Care)
110 IRVING ST NW, 4B42
WASHINGTON, DC 20010
District of Columbia (202) 877-7462
EMILY JEAN SIEGEL MD
Student in an Organized Health Care Education/Training Program
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-8080
KIMBERLY SMITH
Radiology (Diagnostic Radiology)
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (301) 902-1073
MISS ORE-OLUWA ODULANA LIMA DA SILVA CRNA
Nurse Anesthetist, Certified Registered
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7504
DR. FAY HORNG M.D.
Anesthesiology
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7504
DR. MICHAEL B SHVARTS MD
Radiology (Diagnostic Radiology)
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7000
DR. SCOTT THOMAS MARTYNA D.M.D.
Student in an Organized Health Care Education/Training Program
110 IRVING ST NW, DEPT. OF ORAL AND MAXILLOFACIAL SURGERY
WASHINGTON, DC 20010
District of Columbia (202) 877-7332
MS. NOOR-UL-HUDA AMER MEHDI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7000

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 Michael Pottash's NPI number?

The NPI number for Michael Pottash is 1821359290. It was assigned to this individual provider in the NPPES registry on June 1, 2012.

Where is Michael Pottash located?

Michael Pottash practices at 110 Irving St NW, Washington, DC 20010. The listed phone number is (202) 877-7445.

What is Michael Pottash's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Michael Pottash enrolled in Medicare?

Yes. Michael Pottash 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 Michael Pottash's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Pottash reassigns Medicare benefits to 2 organizations: Relief Medical Group PA (New York, NY) and Ssm Health Care St. Louis (Saint Louis, MO). 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 Michael Pottash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Pottash accept?

Health plans from Anthem Blue Cross and Blue Shield list Michael Pottash 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 Michael Pottash affiliated with any hospitals?

According to CMS data, Michael Pottash is affiliated with Ssm Health St Mary's Hospital - St Louis.

When was this NPI record last updated?

The NPPES record for Michael Pottash was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 days 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.