DR. DEREK LEWIS TENNENHOUSE (M.D.) – Obstetrics & Gynecology Physician, NPI 1689813073

DR. DEREK LEWIS TENNENHOUSE (M.D.) is a healthcare provider. based in Carmel, Indiana. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 01056104C (IN). The NPI Number for DR. DEREK LEWIS TENNENHOUSE (M.D.) is 1689813073

Main info

Male
28 Years Of Experience
Accepts Medicare Assignment
Name
DR. DEREK LEWIS TENNENHOUSE (M.D.)
NPI
1689813073
Phone
(317) 796-3897
Address
1200 W CARMEL DR
Enumeration Date
10 February 2009
Last Update Date
25 February 2017

Doctor Profile

Medical School Name
INDIANA UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
9044663701
Graduation Year
1998 (28 years ago)
PAC ID
1456264142
Group Practice PAC ID
3678874567
Professional Enrollment ID
I20090409000618
Address ID
IN469015148KO1907XSTXX400
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience48
Completeness75
Years active:17State licenses:1Digital endpointsOther names

3,517 INTERNAL MEDICINE in IN

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Provider Addresses for DR. DEREK LEWIS TENNENHOUSE (M.D.)

  • 1200, West Carmel Drive, Carmel, Hamilton County, Indiana, 46032, United States

    #103

    CARMEL, IN 460328707

    Phone: (317) 796-3897

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 4 Open Payments records for all available years, with a total value of $356.

Total Amount is formed as General ($356) + Research ($0) + Ownership ($0) = $356.

Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Smith+Nephew, Inc. ($136).

Total Amount

$356

General + Research + Ownership

Payments

4

Total payment records

General Amount

$356

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-05

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

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: 2009-04-09

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20090409000618IInternal MedicineINTBD

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.

Verify on CMS Revalidation Lookup Tool

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes1,195217$0
99308Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes943268$0
99305Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes286234$0
99304Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes274223$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes6326$0
View full utilization report →

Insurance plans in this area (ZIP 46032)

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Provider's Procedures

DR. DEREK LEWIS TENNENHOUSE (M.D.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINEIN11042Removal of skin and tissue first 20 sq cm or less1717

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3678874567View full group profile
NameSpecialtyState
Nurse PractitionerKY
Nurse PractitionerAZ
Nurse PractitionerIN
Diagnostic RadiologyIN
Nurse PractitionerIN
Nurse PractitionerIN
Family PracticeIN
Nurse PractitionerKY
-KY
-IN

Reviews

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Frequently asked questions

What unique ID ties claims to DR. DEREK LEWIS TENNENHOUSE (M.D.)?
NPI 1689813073 is assigned to DR. DEREK LEWIS TENNENHOUSE (M.D.) under the national enumeration system.
Does this profile mean DR. DEREK LEWIS TENNENHOUSE (M.D.) is currently active?
Yes — DR. DEREK LEWIS TENNENHOUSE (M.D.) appears active in the national provider directory.
Does DR. DEREK LEWIS TENNENHOUSE (M.D.) list a primary specialty?
If you are matching referrals, note Obstetrics & Gynecology Physician for DR. DEREK LEWIS TENNENHOUSE (M.D.). Clinical services aligned with this taxonomy classification.
Where is DR. DEREK LEWIS TENNENHOUSE (M.D.)'s primary listing?
We display Carmel, Indiana because that is what the record indicates for DR. DEREK LEWIS TENNENHOUSE (M.D.).
What if Carmel, Indiana seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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