SHELLY H TIEN (M.D.) – Maternal & Fetal Medicine Physician, NPI 1457500787
Maternal & Fetal Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
1,925 OBSTETRICS/GYNECOLOGY in IL
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Provider Addresses for SHELLY H TIEN (M.D.)
E2 Apartments, 1890, Maple Avenue, Downtown, Evanston, Evanston Township, Cook County, Illinois, 60201, United States
APARTMENT 1105E
EVANSTON, IL 602013159
Phone:
Type: Mailing
Evanston Hospital, 2650, Ridge Avenue, Evanston, Evanston Township, Cook County, Illinois, 60201, United States
STE. 1420
EVANSTON, IL 602011718
Phone: (847) 570-2860
Type: Location
2602 Saint Michael Dr
Texarkana, TX 755032387
Phone: (903) 614-2073
Type: Location
2424 N WYATT DR STE 260
TUCSON, AZ 857126118
Phone: (520) 795-0549
Fax: (520) 795-0354
Type: Mailing
2424 N WYATT DR FL 2
TUCSON, AZ 857126115
Phone: (520) 392-7500
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2026-03-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 8 Medicare enrollment records; no due dates published yet.
Enrollment records
8
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20150616001574 | I | Obstetrics/Gynecology | IL | TBD |
| I20221020001592 | I | Obstetrics/Gynecology | AZ | TBD |
| I20250304002857 | I | Obstetrics/Gynecology | FL | TBD |
| I20250314002353 | I | Obstetrics/Gynecology | MD | TBD |
| I20250317001688 | I | Obstetrics/Gynecology | TX | TBD |
| I20250317002301 | I | Obstetrics/Gynecology | MO | TBD |
| I20250317002443 | I | Obstetrics/Gynecology | LA | TBD |
| I20260311004375 | I | Obstetrics/Gynecology | NV | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60201)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | AZ | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AZ | |
| Nurse Practitioner | AZ | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AZ | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AZ | |
| Nurse Practitioner | AZ | |
| - | AZ | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AZ | |
| Nurse Practitioner | AZ | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AZ |
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