2026 NPPES data Pediatrics Physician NPI 1619296795 MD
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WALTER GRIBBEN, MD

Pediatrics Physician in MONTGOMERY, Alabama. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 311 beneficiaries · Pediatrics Physician avg: 762
Generic prescribing
40%
generic claims · 60% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.5008/100
▲ 6 pts above national avg 83.1 · [object Object]
Industry payments
$1.1K
52 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WALTER GRIBBEN, MD reported a CMS MIPS final score of 89.5008/100 — above the 83.1 national average — and filed 1,642 Medicare Part D claims in 2023.

89.5008/100
MIPS score · +6 vs avg
2K
Part D claims, 2023
40%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

WALTER GRIBBEN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

90 Top 42% higher than 58% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

WALTER GRIBBEN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about WALTER GRIBBEN, MD?

High performer (top quartile)

NPI registry status

Active

Issued 05/27/2010

NPI 1619296795

Primary specialty

Pediatrics Physician

High-volume

80,574 US NPIs in this specialty

Medicare Part D claims

1,642 115% vs specialty avg

2023 prescription claims

Specialty avg: 762

MIPS final score

89.5008/100 6.400800000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Alabama

How Pediatrics Physician compares to other specialties among Alabama providers

Alabama providers

Pediatrics Physician share within Alabama

1. Pediatrics Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatrics Physician share within Alabama

Medicare quality performance — MIPS

WALTER GRIBBEN, MD's 2023 MIPS final score plotted against the Pediatrics Physician national average

High performer (top quartile)
MIPS Final Score
89.5008/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Pediatrics Physician) — 89.5008/100 vs national avg 83.1

0%100%National avg83%89.5%
MIPS final score (Pediatrics Physician) — 89.5008/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

WALTER GRIBBEN, MD appears in the CMS NPPES registry as a Pediatrics Physician provider holding MD credentials at 1440 NARROW LANE PKWY, MONTGOMERY, AL, 36111, with a listed phone of (334) 281-4140. NPI 1619296795 was issued on 05/27/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIBBEN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,642 prescription claims written by this provider, covering 311 Medicare beneficiaries and totaling roughly $695K in drug spend, split 60% brand-name and 40% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.5008/100 for the 2023 performance year (Quality 71.85, Cost 91.947), compared with the national average of 83.1.

Pediatrics Physician is a high-volume specialty nationwide, with 80,574 enrolled providers across 56 states and an average of 762 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1440 NARROW LANE PKWY
MONTGOMERY, AL 36111

Provider Details

NPI 1619296795
Specialty Pediatrics Physician
Credentials MD
Gender Male
NPI Issued 05/27/2010

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

89.5008
Final Score
Avg: 83.1
71.85
Quality
91.947
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where WALTER GRIBBEN, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

INPATIENT SPECIALISTS OF CALIFORNIA PC
VISALIA, CA
KAWEAH DELTA HEALTH CARE DISTRICT
VISALIA, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for WALTER GRIBBEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

GlaxoSmithKline, LLC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Brand-heavy

WALTER GRIBBEN, MD — brand share 60.0%
Specialty average (est.)

60% brand-name claims vs 40% generic, on 1,642 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,642
Total Claims
$695K
Total Drug Cost
311
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,060
Total Day Supply
53,639
Brand vs Generic
60% brand / 40% generic
Brand Drug Cost
$676K
Generic Drug Cost
$20K
Antibiotic Claims
110

Patient Demographics

Average Patient Age
70.4 years
Avg HCC Risk Score
1.90
Gender Split
62% female / 38% male
Age Distribution
<65: 65, 65-74: 128, 75-84: 97, 85+: 21

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What WALTER GRIBBEN, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
382
Albuterol Sulfate Hfa
Albuterol Sulfate
279
Prednisone
172
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
96
Breo Ellipta
Fluticasone/Vilanterol
69
Symbicort
Budesonide/Formoterol Fumarate
54
Fluticasone Propionate
52
Spiriva Respimat
Tiotropium Bromide
51
Stiolto Respimat
Tiotropium Br/Olodaterol Hcl
51
Azithromycin
46

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Pediatrics Physician Overview

How WALTER GRIBBEN, MD fits within the Pediatrics Physician landscape nationally.

80,574
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
762
Avg Claims per Provider

WALTER GRIBBEN, MD's 1,642 claims are above the specialty average of 762.

Nearby Pediatrics Physician Providers in Alabama

Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as GRIBBEN.

Compare Pediatrics Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WALTER GRIBBEN, MD's specialty?
WALTER GRIBBEN, MD specializes in Pediatrics Physician and practices in MONTGOMERY, Alabama. Credentials: MD.
How much does WALTER GRIBBEN, MD prescribe under Medicare Part D?
In 2023, WALTER GRIBBEN, MD wrote 1,642 Medicare Part D claims totaling $695K in drug costs for 311 beneficiaries.
What is WALTER GRIBBEN, MD's Medicare quality score?
WALTER GRIBBEN, MD has a CMS MIPS Final Score of 89.5008/100 (Quality: 71.85, Cost: 91.947). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WALTER GRIBBEN, MD located?
WALTER GRIBBEN, MD is located at 1440 NARROW LANE PKWY, MONTGOMERY, AL, 36111. Phone: (334) 281-4140.
What is WALTER GRIBBEN, MD's NPI number?
WALTER GRIBBEN, MD's National Provider Identifier (NPI) is 1619296795, issued on 05/27/2010.
Does WALTER GRIBBEN, MD prescribe more brand-name or generic drugs?
WALTER GRIBBEN, MD's prescribing is 60% brand-name and 40% generic drugs by claim count, with $676K in brand drug costs.
How many Pediatrics Physician providers are there in the US?
There are 80,574 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 762 Medicare Part D claims per year.
What drugs does WALTER GRIBBEN, MD prescribe most often?
Based on 2023 Medicare Part D data, WALTER GRIBBEN, MD's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WALTER GRIBBEN, MD accept Medicare?
WALTER GRIBBEN, MD appears in CMS Medicare data with 1,642 Part D claims and 311 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WALTER GRIBBEN, MD's credentials?
WALTER GRIBBEN, MD's NPI is 1619296795 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology